This article revels an interesting Microsoft memo. There is a chart with the breakdown of Vista’s crashes. The main problem? Yes, you already know, DRIVERS.
Vista-capable lawsuit paints picture of buggy NVIDIA drivers
NVIDIA drivers were identified as the cause of over 479,000 crashes, or just under 29 percent of all the crashes Microsoft logged. Microsoft’s own drivers follow, at 17.9 percent, and the “Unknown” category takes third place at 17 percent. ATI is in fourth place (9.3 percent) and Intel in fifth place (8.83 percent).