Mind you, I'm using still using Windows 98. Today I had to shutdown by physically unplugging the tower from the surge protector, because the power button wouldn't respond. But when I started up again, I got this screen whereby there was a message about a boot error and that I needed to insert a disk into drive A. I tried CTRL ALT DEL, but that just shut the pc down. Starting it up again only gets the same error message. What is wrong with that thing?