My PC was operating nicely until I tried to update my BIOS from Intel downloads. All went fine and a message said BIOS were updated OK. Then I found my cursor was frozen. I tried 3 different mouse devices but never could gain cursor control. I tried to repair and reinstall XP Home using the disk and the boot floppies but got only so far before navigation without a cursor made the operation hopeless. Any advise on escaping this hole I dug for myself would be most appreciated.