I completed the assembly of my new P4C800-E system last night. Everything went fine, the only h/w mistakes was the panel LEDs didn't work because they were backwards. The system has 4 hard drives, 1 DVD-RW and 1 DVD rom. The drives are configured as follows: South Bridge controller: 74GB WDRaptor: SATA1 (unformatted) 250GB Hitachi: SATA2 (unformatted) 160GB Maxtor: Primary IDE, Master (contains data) 80GB IBM: Primary IDE, Slave (contains data on 2 partitions) DVDRW: Secondary IDE, Master DVD: Secondary IDE, Slave When I installed Windows xp on the WD Raptor, it resulted in these drive assignments: c: Maxtor d: IBM partition 1 e: IBM partition 2 f: DVD-RW g: DVD rom h: WD Raptor (boot drive) I like my boot drive to be the c: drive, so I tried to reassign the drive letters with Win xp Drive Manager, it would not let me change the drive letter of the boot drive. I'm ready to reload Win xp to get the WD Raptor boot drive to be the c: drive. Any suggestions on how to do it? Al