The driver had some annoying bug that kept making my computer believe that the hardware had somehow been disconnected, kind of like when you take a peripheral off a USB drive (it even sent the sound warning Windows does when disconnecting a peripheral). The NVIDIA Control Panel was also very sluggish as well. The computer is under a Windows 7 64 bit OS and the card is a GTX 260. I finally was too annoyed by this (it would make games like Starcraft II freeze for a second every time it happened) and I went back to 197.75, which seems to be the last stable version for me.
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