It seems for me, that while i goes from full view mode to windows mode, or visa verca, the graphics getsmessed up. Sometimes it helps to either hit alt+enter, but in most case the simulator just crash. Was trying to read this forum to see if more had this problem, but i could'nt find any. I has readed aboutthe panel freeze bug, but this seems different.

V-sync issue? In any case, you'll have to provide a lot more information for anyone to posit a cure. System specs, etc. What do you mean when you say "graphics gets messed up"?Trevor

I always use alt-enter to switch between windowed mode and fullscreen. I used to use the Windows key before, but when i tried to get back to FSX by clicking on it in the toolbar, nothing would happen until i hit alt-enter to bring it in windowed mode, then alt-enter again to go full screen. But i never got graphics issues specifically because of this. The graphics issues that i did have were caused by exiting the main view of the sim, by displaying options, or the map, or, for that matter, alt-entering back and forth. I solved it by moving uiautomationcore.dll to the FSX folder. That must have done it for me, because i never got one error since.

I am using a xpx 420 with vista 32.Prosessor Intel Core quad cpu q6600 2.40ghzMemory 4gbGraphic card : Nvidia geforce gts 240(latest graphic drivers installed) What i mean with messed up is that the graphic in fsx just ######s up(I can hear the engines running, atc talking, etc like everthing isnormal), but i can't see anything.Mostly the screen turns all grey. This is'nt a big problem as i always use full screen. But its a small problemwhen i setup the plane before takeoff,or if i am up for another flight, which usual means i have to restart fsx:).If i dont touch this keys, everything is okay. This happened also before the latest patch.

I am using a xpx 420 with vista 32.Prosessor Intel Core quad cpu q6600 2.40ghzMemory 4gbGraphic card : Nvidia geforce gts 240(latest graphic drivers installed) What i mean with messed up is that the graphic in fsx just ######s up(I can hear the engines running, atc talking, etc like everthing isnormal), but i can't see anything.Mostly the screen turns all grey. This is'nt a big problem as i always use full screen. But its a small problemwhen i setup the plane before takeoff,or if i am up for another flight, which usual means i have to restart fsx:).If i dont touch this keys, everything is okay. This happened also before the latest patch.

Honestly, given your specs, I would take what you can get. If you can just stick with full screen mode and avoid the graphical problems, do that. I would suspect that your graphical problems are the result of your hardware not being quite up to task.Trevor