Due to SP2 corrupting my machine, I was finally forced to remove the drive, install as a slave to another machine, reinstall XP. It works. But upon removing and reinstalling it back to the orginal machine I can't get it to boot. I confirmed that it still boots on the other machine. BIOS seems okay (recognizes a drive) but the install just beeps once and sits on a flashing cursor. I've tried all apparent variations of cable connections (removed plastic toggle, installed it over master, installed it sideways over master/slave, etc),,,tried 1st pin on loop, 2nd pin, etc. Am I missing something obvious?