Corrupted Display List

My program compiles a display list of quads and displays them.

Every 5th (or so) time I run the program a couple of random polygons are corrupted and are sticking out at weird angles.
Recompiling the display list fixes the problem. Anyone know what causes this? Any suggestions?

You can’t do anything about it. It’s corrupted vRAM. I only get it when my gfx-card gets hotter than usual. A bigger fan might help.