So I have WinXp running in bootcamp on my MBP 2.53. It has been very stable. I downloaded and installed the demo for the new Batman game. Started it up, went fine. Played the demo a couple times. Looks and sounds great. Going to be a fun game. Anyway, yesterday I loaded up bootcamp to play it again. I opened the game, it showed me the first "loading" image of Batman standing there, looking all boss, and then the screen started flashing. I could not get it to stop. It flickered about every second, and everytime my mouse wound up in the screens center again. When the screen was on, I could see my taskbar, and the fact that the game was on there, but everytime it flickered, whatever I tried to do would be reset, and mouse would go center again. So if I hit the START button, the menu would disappear. I could not use alt+F4 to close, and if I did ctrl+alt+del I could see on the task bar that the console window appeared, but I could never see it. I ended up having to use the power button to shut down. If I restarted into OSX I got a msg. about the bootcamp drive not mounting properly, and did I want to force or abort. If I booted back into bootcamp, the chkdsk ran, but then windows booted up normally. Now everytime I try to play the game, this occurs. Has anyone else experienced this with this game, or another? Any ideas what I can do? Thanks for the help.