MAC OS X Version 10.6.2
MBP 2.53 ghz 4gb ram NVIDIA 9400M (Aluminum macbookpro)
Windows 7 Home premium 64 bit
Video card has latest driver
I also get the flashing for Soldiers of Fortune 2 Double Helix: Multiplayer demo on full screen. When I don't have it on full screen, it doesn't flash.
For Tribes 2 (game shown on youtube), it had crashed on me and I let Windows 7 fix the problem w/ "Try Recommended Settings"
I'm not sure what it did, but the game hasn't crashed on me. But then again, I haven't played it for longer then 2 minutes.
If you need any more info, tell me. I'm not good with computers so if you could tell me where to find the info, I'd appreciate it.
I'll try and mess around with the in-game settings.
I also play Quake Live and I have no problems with any flashing.