Flashing Runways, Black Squares , Black Headlights etc etc

If you look at any flight simulator forum your will periodically find people reporting issues with black squares or flashing runways and helpful advice to untick Dx10 preview!  All these problems have the exact same cause – its a  bug in the DX10 engine that when it draws a large number of something in different scenery tiles it forgets some instructions that the GPU needs.    The Fixer completely fixes these issues period!

Its very hard to show screenshots of something not being faulty – but here is a picture of an aircraft on a runway that isn’t flashing!


Legacy Scenery

With the Fixer any scenery and aircraft built with the FS9 SDK will appear normally. Without the fixer they will appear untextured at night and in the case of aircraft during the day also.

The picture at the top of the page  shows a scene containing such legacy scenery with the fixer enabled on the left and disabled on the right.

Because the older SDK has some useful features not in the fsx equivalent many airports published for fsx still use the older sdk.

Aircraft Shadows

The main advantage that DX10 has over  DX9 is that in DX10 there are shadows in the VC.   The Fixer provides a number of improvements to the quality of these shadows particularly with the larger jet aircraft.

The Fixer

  • Softens shadow edges
  • Increases shadow resolution in larger jets
  • Improves placement so shadows start close to the object casting the shadow – just look at antennas in DX9 to see what I mean here.
  • Adjusts the colour of shadows to match with surfaces that face away from the sun

737 VC Shadows (HD Shadows enabled in Fixer)



Interior Shadow Accuracy

Exterior Shadow Accuracy

The Fixer can also enable shadows (externally and internally) for Legacy aircraft from generations of the simulator.

Other Fixes

Progressive Taxi Fix

Transparent objects such as bridges no longer disappear at night

Water colour is greener and much closer to DX9

Fix to avoid the visible cone of rain where the rain intersects the ground

Includes a set of working navigation lights

Water Fixes – no milky water, sunset and moonset improvements

Corrected FogVisibility for FTX Global Lights

I do not sell directly to customers – instead DX10SceneryFixer is available from FastSpring a US based reseller below


Having purchased you will receive an email with a download link , normally within a few seconds. If you have any problems in the payment process or do not receive the email within an hour then please contact FastSpring support using the following link:

FastSpring Support

If the issue is not resolved promptly by them then you may contact me to chase them on your behalf.

85 Responses to Features

  1. Anonymous says:

    I really have to say, I think your fix is the most essential of any add-ons available for FSX, free or paid. I think that your fix should have been incorporated into the Steam Edition as a essential part at the current price, and you should be given a cut for every purchase of FSX:SE.

    Frankly, I think it’s unacceptable for them to charge as much as they do for SE and not have these essential fixes. DX9 is really not an option for a game that’s had DX10 support for years (albeit poor) when it finally gets a re-release on Steam, which usually involves some manner of modernization or enhancement. And DX10 isn’t really an option either without this fix! It’s like they’re marketing a old DX9 game as a DX10 game and charging more for it. They give you two bad choices and act like they’re good and then want your money. They should have at least given the game full DX10/11 support for the Steam release.

    What they’re doing is unacceptable, but people like you deserve serious credit. It does seem, however, like your fix isn’t as well known as it should be.
    Have you ever been approached by MS or Valve about any deal or partnership?
    I mean, people like you are really doing their job for them, so the least they could do is give you some free marketing by actively encouraging their customers to get your fix.
    Now that the new Flight Simulator is out, people are going to gain or re-gain interest in FSX too, even if they’ve already bought the new one. This is an opportunity for people to get a proper FSX experience with a proper DX10 fix like yours.

  2. Josef says:

    Hi Steve!
    Good of you to make this fixer thingy! So many things that Microsoft should have done long ago.
    Does this also fix the bug with cockpit tooltips not showing in fullscreen in DX10 mode?

  3. Yasuhiro says:

    Dx10 cloud shadow to download and installed but FSX setting walter 2mid on
    But, , cloudshadow is not out of effect


  4. Darren Karp says:

    Hi Steve,
    I’ve come to reinstall FSX after 5 years of inactivity and have noticed that I’m unable to download your program as Flight Sim Store have ceased trading. Can you help?

  5. Michael Beal says:

    Hi Steve, I just rebuilt my computer and am attempting to re-install your fixer from the v2.7 version. The problem I encounter is because I have changed my email address and it is not recognized. Is it possible for you to update my email address so that I can re-install.my DX10 fixer? My old email address was

    • stevefsx says:

      I have updated your email and sent you everything you need

      • Mike Beal says:

        Thank you for your quick reply Steve,
        Before I re-install, I just wanted to confirm whether I should re-install the dx10 fixer first, before re-installing my FS Global 2010, ORBX FTX Global Base, FTX Global Vector and FTX Global Open LC, or does it matter. It’s been a few years since I first installed them and can’t remember if there was indeed an order.
        Thanks in advance,

      • stevefsx says:

        It doesn’t matter. The fixer doesn’t change anything to do with addons or textures

  6. BernieFSX says:

    Such a great add-on to “re-animate” my old FSX-Installation and to migrate the installation from DX9 to DX10 technologie. All the artefacts with legacy sceneries disappeared and performance and environment “atmosphere” is really stunning.
    Thank you so much for your great work. If your were part of the Microsoft developer team in the past we still would have had a FS-XX product these days;-)

  7. Mike says:

    Steve, just wanted to say thank you for the great contribution you have made to the FS community. The DX10 fixer works great in a well configured system even with 100+ addons. Any minor flaws are more than acceptable. Cheers

  8. Shobhan says:

    I purchased the fixer from fastspring. I need you to reactivate the link. If you want I can provide the order details.

  9. Almedin says:

    Hello, is it work with FSX Steam Edition and REX 4 Texture Direct does it fix runway flickering in FSX SE with REX 4 TD? Thank you.

    • stevefsx says:

      If you are describing flashing just where the taxiway meets the runway when running fsx with dx10 preview ticked and it doesn’t then occur when running with dx10 preview unticked then it fixes that. If you are trying to describe something else then no.

      • Esteban says:

        hey steve thanks for the add on just one thing how can I get shadows in the quality wings 757 and will the shadows work on the 747 v2 from pmdg thanks for the help

      • stevefsx says:

        Have you enabled forced vc shadows in fsx .cfg? Check the manual there is a page on how to get them working. I have seen people say that they work on the qw757. I don’t know about the 747 best to post on avsim and ask.

  10. Samuel says:

    VC shadows are not accurate in pmdg aircraft…Im using v2.7 what should I do?

  11. dominique says:

    Bonjour, lorsque je lance dx10fier il ne trouve pas mon fsx et j’ai la case grisée pour le chercher comment faire j’ai désinstaller déjà 3 fois merci

    • stevefsx says:

      Have you changed the location of fsx without uninstalling the libraries? If so select preferences-> Allow emergency change of fsx directory. Then you can change the path in the controller.

      If the isn’t clear respond here and I will email you a screenshot

  12. boody2017 says:

    Thank you so much !!! J’ll go check this out and try to wipe that silly smile on my face … Or maybe not ! 😉

  13. Jed Labatt says:

    Hi, Sir ! J can’t get my three favorite airplanes to display shadows in the cockpit … They are the Flight 1 Mustang, the Beech 200 and the RealAir Duke … On the Diagnostic menu it say : ForceVCShadowMap not set in fsx.cfg … Is it a line j have to add or what ? If yes, could it be in the Graphic menu ? Waiting for an answer, j’ll go back fly at night ! Thanx for this product, it’s awsome, j can’t beleive j simflew all these years without it ! Cheers !

  14. stevefsx says:

    Do you have the payware fixer or the simple shader patches as they aren’t the same thing?

    If the former then can you email the yahoo support email with your order number please.

  15. Victor Green says:

    Greetings Steve,
    I recently purchased an upgraded computer. After trying to reinstall my fixer I find it cannot reinstall on my new system because the files are not there, I have my license from Fast Spring,com. How do I get a redownload of my fixer?
    Thanks, and good work.

  16. Hello Steve
    Today i purchased the cloud addon,but no email in return,whats wrong?

  17. Roger Campeau says:

    Just installed DX10 v3.3 the path is correct, Libraries are installed and up to date FSX DX Setting is switched to DX10.
    But everything else is grayed out !
    DX10 Anti Aliasing is set to 8x but It can not be changed also none of the options can be changed as they are all grayed out.
    What can I do to fix this situation?
    Thank you

    • stevefsx says:

      What does diagnostics report? The only reason for options to be greyed out is that the shader files underneath the fsx directory are the wrong size. Is there a file general10.fx in \ShadersHLSL\general and what is its size?

      Changing AA just writes a value into fsx.cfg. When you say that you cannot change it – what exactly do you mean – can you access the pulldown for say 4x – what happens – is there an error – does it then show as 4x but reset after you run fsx


    I lost my download link and ı can not update 3.1 version

    How can I find new version download link?

    Thank you!

  19. Louis says:


    If I enable DX10 preview in FSX it crashes after 20min. In DX9 it never crashes. Will the crash be fixed when I use the DX10 fixer? Or can i use some other tweaks and programs, that it doesnt crashes? I saw the bugs in DX10 so if the DX10 mode would work i would buy the fixer. Thank you 🙂

  20. Mark Dustin says:

    heyo stevie boy!

    I’m wondering if this has bigger impact compared to the old dx10 or this lightens the FPS?

    • stevefsx says:

      It’s broadly performance neutral compare to running dx10 preview in fsx.

      There are some minor optimisation on clouds which can gain a small amount in heavy cloud.

  21. Mark Dustin says:

    Hi Steve! I’m just wondering does this fix have bigger impact on FPS?

  22. shant says:

    worked Thanks.

    • stevefsx says:

      Sorry for any inconvenience.

      • Warren Alexander says:

        Hi Steve – I think that you covered it – maybe even a hundred times, but I really wanted to know for sure. I have several Fly Tampa scenery. The other day when on the approach at CYYZ, after installing FTXG, I noticed many, many black squares. Do you know if the DX Fixer will resolve the issue? WIndows 7-64 bit. High end Alienware Laptop. Thx.

      • stevefsx says:

        the fixer fixes the ftx global black lights assuming you are using dx10 preview.

  23. Michael Houghton says:

    Dear Steve,
    I have just purchased Approaching Quito for FSX. I use DX10 and your scenery fixer. However there are some flashing textures around the airport buildings which I understand from the aeroosoft forum may be related to me using DX10 preview. Unfortunately running the scenery fixer program has not resolved the problem. Is this something you will be able to rectify. I have created a video which runs from my dropbox which demonstrates the problem.


    Thank-you for your help and the program.

    Michael Houghton

  24. Pete Klapwyk says:

    I have installed 3D Shaders v3.11 I am very happy with the way my FSX_se is working in DX10.. Will your payware DX10 fixer work as is or do I need to delete, backup or change anything before installing your payware version. If there are enough instructions included in your DX fixer I will go ahead and order your latest version. Thanks for all the work you have done for all us simmers.

  25. Oscar Warringtom says:

    Does your dx10 fixer fix the problem of ORBX 3d night lighting showing up as black squares during the day?

  26. Simon Clark says:

    I have been running both Steam and Microsoft FSX on my Newish PC in Windows 10 and have had No problems when not using DX 10 Preview(Some Airplanes can’t operate in DX10). I am however using a Nvidia GFX Card.

  27. Nikolofos says:

    Hey there, I just bought a new PC and and wanted to setup my FSX again. The problem is, that I am using Windows 10 so i am needed to use the DirectX Preview, otherwise my screen stays black. But as you already now the runway is flashing and i cant see thing at night, also other airplanes of my AI traffic are just white. I have an AMD R9 390 Nitro graphics card. Want do i need to purchase so these problems are fixed? Is there a solution at all?

    Thanks for any information!

    • stevefsx says:

      yes the purchase button at the top of the page takes you to my shop. The fixer should fix most issues, read the warning about AMD and AA level though. There are free patches that I created which will fix just the runway flashing but they wont fix the white aircraft.

  28. John says:

    Hello Steve,
    you could put this addon in steam?

  29. Simon Clark says:

    I have lost my issue of DX10 Scenery due to HDD failure. Do I need to re-license.

  30. Jose says:


    I have problem with my shadow ground eliminates active AI traffic Skai traffic. Any solution?

  31. Rafael Benezra says:

    Hello Steve I would like to purchase your fixer but I would like to know if it works on P3D v3 thanks

    • stevefsx says:

      No it doesn’t. You don’t need the fixer for p3d it runs in dx11 and they have fixed all the issues inherited from the fsx dx10 implementation on which it is I think based.

  32. NIck says:

    Hi Steve

    A question that is probably covered many times already but the DX10 fixer does the free/paid version fix the black box issues?


    • stevefsx says:

      If you mean the fsx global lights then yes they do.

      • Nick says:

        It is on fly tampa Athens, there are boxes in the fields in the middle of the day. I am not sure that it installed correctly, I am running FSX SE (not in the programs folder of the pc) I’m not sure if that should matter on the install.

      • Nick says:

        I think its not installing correctly for me as it is still visible as boxes, I have fsx in a custom location and also it is Steam Edition. the mod that I am using is Fly Tampa Athens where I see black boxes in the fields (not related to lighting as its in the day time)

      • stevefsx says:

        Flytampa are legacy sceneries and you need the payware fixer for that. It’s worth checking what flytampa say about dx10 support for the airports that you have

  33. Paul Dorai-Raj says:

    Hi Steve, I bought your program about a month ago and have been absolutely loving it!
    Strange thing happened taxing out of Gatwick (Aerosoft add-on), but also out of Orbx’s Southampton- the progressive taxi indicators were nowhere to be seen! I had never had a problem with viewing them before.
    I did make a couple of changes in your configurator which I only remembered after the event. The most significant one was disabling the 8 bit texture fix- could this be the source of my problem?

    Thanks in advance,

  34. Paul says:

    Hi Steve, bought this marvellous program in May 2015 and wondered where I can get the updates from?



  35. Abdoulaye says:

    Hi Steve

    What is the size of the installation of DX10 Fixer Scenery? Is it lower than 1GB?

  36. Abdoulaye says:

    Hello Steve!

    What are the difference features between DX10SF (Freeware version) and the DX10 Fixer (payware version)?


    • stevefsx says:

      The pay ware fixes legacy scenery which is otherwise grey, has better shadows especially in big jets and fixes more scenery

      • Abdoulaye says:

        Ok Thanks!! But what about AI Traffic aircraft under DX10 Fixer (ICE AI traffic or Sky AI Traffic). Is it fully compatible now??

      • stevefsx says:

        I believe that WofAI aircraft work ok with it ( with a few exceptions) best to ask for confirmation on avsim or sim outhouse

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