Every XWing game I have installed into Windows 7 (64bit) is giving me graphical issues in-game. I get this blockiness effect after only a few moments of action. I am attempting to post an image of one example in XWA here. Any ideas on what I can do to fix this? Game seems to run flawlessly otherwise. No other games have this issue, just the XWing series (XWing CD, Tie CD, XvT:BoP, XWA)
I am using an ATI 4850, updated drivers.
Using maxed out graphics settings in all games.