Alright, so I first noticed this when playing Mirror's Edge. What will happen is, a while into playing, the graphics will simply freeze but the music will continue to play. Eventually, the screen begins to flash and I have to reboot. This happened a few times, so I set ThrottleStop's multiplier to 32 instead of 34. However, for whatever reason when I'm merely in Windows doing whatever, the mouse will freeze into place sometimes. This has happened twice. The first time, I waited a few seconds and it ended up working fine. The second time, I tried hitting the window button, it switched to the tile screen, and then stayed frozen there, regardless of what I did. Had to force shut down. My question is, what is causing this and how can I prevent it? I also have both 750Ms overclocked but only 135MHz core and 300MHz memory, which are supposed to be stable (not saying they are or aren't). Thank you in advance, just trying to figure out a way to get the best combination of performance and stability :\