Hi,
Had the same thing happen last night on an intel based new workstation, it was reporting back sectors after applying all the patches to Windows 7 Ultimate. The F8 worked, finished the patch update and ran diags, says nothing wrong with the disk, maybe a Windows 7 update problem.

>Neil,
>
>That was the 3rd thing I tried, it's not loking like it was the update or driver at all now... running a Seagate disk diagnostic and so far it's found 3 bad LBAs... another 1.8 billion to test
>
>>Try F8 at boot and try "Last Known Good Config" and see what happens.