This has been happening for a very long time now. Everytime I am playing a game and watching a movie at the same time, my computer gets the BSOD. It will either just freeze both my monitors and then lead to BSOD, or it will start giving off weird colored lines and different colored pixels across both screens.
OS: Windows 7 Ultimate x64
MOBO: EVGA nForce 780i SLI 775 A1 Version
VGA: XFX ATI Radeon 5850
CPU: Intel E8400 C2D
Memory: CORSAIR XMS2 DHX 4GB (2 x 2GB)
Monitor 1: SyncMaster 2253BW 22"
Monitor 2: LG 32LD550 32"
Since I have owned this PC, it has crashed countless times. From Windows XP Pro to Windows 7.