My roommate has been using his computer for years and it just recently locked while he was downloading something from an ftp site. It will no longer boot at all. We've tried leaving it unplugged for a while and also pulling out the battery but nothing changes. When it is plugged in power immediatly comes on without touching the power button and nothing is outputted to the monitor. It's a PII 350 Gateway with a V3 2K. Any ideas on how to fix this? Thanks.