Hi JetRanger

Go to your FSX route folder i.e. C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X or C:\Program Files\Microsoft Games\Microsoft Flight Simulator X and find the fsx.exe file. Right click on it and select Properties from the list that comes up. Now select the Compatibility tab the in Privilege level, and checkmark (place a tick in) the box beside Run this program as an admistrator. Click on OK.

See if doing that helps. If you do have FSX in its default location, it can cause big problems for those using Vista or Window 7 because of the protection.

If you continue having problems after that, you might want to consider uninstalling FSX and reinstalling it in another location. Like C:\Microsoft Flight Simulator X or better yet, on another drive/partition D:\Microsoft Flight Simulator X (mine is on another HDD in J:\Flight Simulator X).

Hope this helps.

Mark