Last nite I shut my pc down with no problem today for no reason at all when i try to boot up it says the following "Media Sheild Rom Bios 9.85 Copyright (c) 2007 Nvidia Corp Detecting Arrays... and the curser just keep blinking and never boots into my desktop. It has never done this before. All i can do is shut it on and off. Plus my keyboard doesnt lite up. Any help would be appreciated. I dont no much about computers so please be very simplictic if u answer. ty