Hi all. I have a Maxtor 160GB Serial ATA Hard Drive with Native Command Queuing running off a ABIT AA8XE Motherboard. Here's the problem: For the past Week and a half the HD hasn't been detected or has been showing up in the BIOS leaving me locked out of Windows XP. Just this morning though I cleared the CMOS on my motherboard and the everything is fine.The HD shows up as Primary slave and Windows boots right up. But then I shutdown my PC and turn it back on and it back to the same old trouble with the HD not there. Anybody know what i'm experiencing here? Thanks in advance.