hey guys, i went to put in a harddrive and didnt bother shutting the computer down and it shut itself down for me. now its stuck at the main load page where it says hit delete for bios, escape for boot stuff. and it wont go any further. please help me fix this situation. thank you ok, so i pulled both harddrives out and put them into my external enclosure, and the primary hardrive is dead i believe, it doesnt make any sounds at all, while the secondary harddrive, where vista is installed makes noises as if its not completely dead. new update..got it go past the bios page, but now it said unable to load OS. so i cleared the CMOS, and retried. same thing. now i restarted again, and after verifying the DMI Pool Data it came up with this: NVIDIA Boot Agent 231.0528 Copy Right (C) 2001-2005 NVIDIA Corporation Copy Right (C) 1997-2000 Intel Corporation Clinet MAC ADDR: 00 15 58 5C 13 38 GUID: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF DHCP..... and it just keeps adding in the periods. also when i go into bios it sees the slave drive (with vista on it) but it does not see the master drive which has everything of importance.