Could it be the full moon? Random celestial shinnanegans? Martians?
I had a bit of a strange computer day; my main system decided that it wanted to blow up when I tried to play a bit of Halo. Forty-five seconds into a game, the system hard locked. When I rebooted, it gave a lovely 'Windows cannot be started, C:\WINDOWS\SYSTEM\CONFIG is missing.' So, that was a wasted hour having to reinstall Windows.
My 'old' system at work (a sneaky guts swap to replace the celeron 500mhz with 64 meg company system to facilitate at least a *mild* amount of gaming) decided that it wanted to lock the refresh rate at 60hz - even vanished the option to change rates in the display properties. There, I had to uninstall and reinstall the video drivers to enable a refresh rate change.
My laptop decided that it had unearthed a second video card in its case, and attempted to install additional drivers for the extra special bonus Ati xpress200 that it found! When I tried to tell it that I didn't have a second video card, it locked up and required a hard boot, then promptly forgot about its new find the next time it started.
Maybe it's the full moon... just wondered it anyone else had any strange tech stuff happen today.