Hi all, I saw somewhat relevant answers here, I'm hoping someone can help. Specs: I have a debranded HP Media Center TS-NO747M Athlong 64 X@ (T) 4200 + 2.2 G 2G PC-3200 mb/sec DDR SDRAM 300G SATA, 7200 rpm All drivers etc. were up to date I was using the system w/factory settings Problem history I changed the boot order in order to boot off a CD to run a bootable CD. I've done that before w/other systems, no problem. That program ran, however, my system didn't recognize the Enter key (tab worked). So I exited and it rebooted with lots of text flashing by too fast to read. On reboot, it repeatedly got stuck on the BIOS looking for the HDs. It could not even reboot to a bootable CD, just hung. So after research and advice from IT at my company (even though it's my system, not theirs, and now they're all off duty) I reset the BIOS by removing the CMOS battery for 10 minutes in order to reset it to factory values. I could not see any jumpers to just change the setting. With the battery back in, I start the computer. It finally starts, but asks for a recovery CD. I put in the XP installation CD (which is all I have), and it starts to boot. But when I go into either the boot menu directly or through setup, all it sees is the CD-ROM group. The First Channel Devices 0 and 1 are my DVD writer and reader respectively, and there's nothing else. There is no sign of my HD. The Onboard SATA-1 Adapter is enabled. Reloading defaults did nothing. It says the HDD Group Boot Priority is Not Installed, the option is greyed out. Help please!!