Missing in Action

That does help a lot apilot as that is just what happened.My sound would not work either and neither FS9 nor FSX would start. I downloaded a new video card and all went well for about 30 minutes and then failed again. I gave up in the end and rolled back to Vista where all is OK.
Warren.

Windows XP drivers will work with Vista because Vista is just an upgraded version of XP. Windows 7 is a whole different animal. Microsoft will eventually stop supporting Windows XP with upgrades because they have put all their efforts into moving forward with Windows 7 and it's descendents.