A handful of customers have reported problem running the DX10Controller program after installation.
Most people are seemingly unaffected by this issue.
I have identified the problem and created a new build 71 of version 2.9 which has been uploaded to FastSpring and the FlightSimStore
If you have updated to 2.9 and have had no problem then there is absolutely no need to update.
If you have experienced this problem then please download and install the new version.