my computer randomely shutting down is really pissing me off, every time i download a big file (a movie for example) on bearshare my computer shuts down and restarts, this never used to happen before i have used bearshare for a long time without any problems, this happens regularly now but when it first started happening after the computer would randomaely restart there would be a message saying "your system has just recovered from a serious error" but that doesn't happena anymore, it said it had something to do with a device driver but anyways, just 5 mins ago i closed all my programs except for the firewall and left bearshare on to see if that would help and it didn't, why is my computer doing this? i do not want to wipe my system clean again so what can i do? i have done virus scans and nothing has came up, i have zonealarm for a firewall, any help would be appreciated a lot,