My computer froze on trying to load windows so I went to safe mode. Not even safe mode would boot up. Assumed I would have to do a complete reinstall but even that wouldn't progress beyond the 'windows is starting up screen' - scratched my head contemplating a motherboard failure and then remebered I had recently installed a belkin usb 25 port pci card a few days before. Surely it wouldn't reek such havoc? Removed the card and what do you know, everyhting is fine again. My advice - keep away from this card it's a killer!