Markoz wrote on Apr 17^th, 2011 at 10:36am:

If you are using Windows Vista or Windows 7 and Flight Sim X is installed in the default location (C:\Program Files\), you might need administrative rights to be able to save any changes.

Is there a different install mode for 64 bit systems.  I run it on my 32 bit system, no problem but I tried it on 2 64 bit systems (Vista and Win7)
and both have issues with rockets and effect.  When I fire the rockets the screen freezes for a second and I don't see the rockets but I do hear them and see the hit the ground.  With the missles, I see and here them go but they don't cause smoke effects damage to the aircraft they hit.  I checked and CS is installed in the Program files x86 location.  I've started a support ticket but I find the forum helpful.  Any tweak or thoughts?