I am bangin my head on the wall here lol, my sons computer crapped out, found multiple hard drive errors, removed hard drive and bought a new one, installed new freshly formatted hard drive and broke out my windows 7 cd. The computer previously had vista but the motherboard box said windows 7 ready on it so i thought i would put 7 on it. Upon fresh install it goes thru all the steps properly until the screen that says "starting windows" with the lil swirl icons, then i get the blue screen of death. It states that my current bios does not fully support acpi contact my pc vendor. I bought the mother board prob 2 years ago, its a asus M4A785-M, i have 6 gigs of ram in it and a amd athlon 64x2. Computer ran great last 2 years, i got the newest bios from asus site, followed microsofts directions, unhooked all but 1 ram chip, unhooked extra dvd drive, removed everything but mouse and keyboard, removed sound card (has onboard anyway) nothing made any changes, i reformated the hard drive and tried the original vista disk i had used before, i flashed the newest from a usb stick, same message. i read on asus forums that others had to go back to a older bios to get better windows 7 support, but i have tried vista and 7 with same message, any help will be much appreciated