A. Not enough RAM
B. DivX
I went with DivX because WMM did the same thing and it usually was unfixable. And I can't fix A. So, after I removed DivX and got Huffyuv I got this when trying to load it up.

I thought MAYBE it was cuz I was lagging but I restarted, no difference. I installed the INF file from Huffyuv, I loaded it onto my desktop. It showed the loading bar for a milisecond and it was gone in a flash it said
Copying Files INF DLL or something 50% cuz I got a screenshot of it but I don't have it anymore.
So how can I reconfigure ALL of my clips to Huffyuv?
[MOD 403: topic moved. Please reserve video hardware help for hardware issues, like processors and hard drives, instead of software issues]