When I boot up my computer it goes through the initial screen and I can access the bios options then it restarts. If I'm quick I can manage to get into the OS/Bootup selection screen by pressing F8 before the computer restarts itself. Choosing different options, ie safe mode, changes nothing. The bios is detecting all the drives and devices correctly. I believe that someone (a person supposed to fix a previous problem) made it restart in a loop by changis a setting some where but I can't find what they did and reseting the bios settings to default didn't help. Any suggestions? Thanks.