Well, I still have not figured out the cause of my shutdown problem and the problems seem to be getting worse. Now I can access Windows Media Player 10, but I can't get it to show the contents of the music library. Further, when I rip a CD the contents are not added to the library automatically, nor can I add files to the library by searching the computer. The search function opens a window (as normal), but then just hangs. I'm reasonably certain the problem is in the OS but have no idea where, or how to fix it short of doing a fresh install of XP.