Hello, I recently realized my 2 hard drives were out of date and I was running out of room so I ordered two WD 1TB 64MB 7200RPM SATA3 Hard Drive (WD1002FAEX). I installed windows xp and transferred all my data to one of them last night. Had no problems did the windows updates, installed my programs, and everything was going fine. I just installed the second hard drive today and the PC will not boot now, it gives me the message to boot from cd/dvd and will not proceed beyond this. The boot order is set correctly to the proper hard drive and I have tried manually selecting it from the boot menu. Can anyone help me out? I am not real sure what to do, thanks for any help!