I just built a machine last night with the following components: MachSpeed Viper 939AGP motherboard AMD Athlon 3200+ socket 939 processor 2GB PC3200 RAM Sapphire Atlantis Radeon 3600 128mb graphics card WD 160gb IDE Ultra ATA100 hard drive Plextor 16X DVD burner I can't even install XP because every time I turn it on, it ends up at Boot from CD: DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER even with my XP disc in the drive. The BIOS menu recognizes both the burner and the HD, and every time I try to make it read the XP CD as a system disc, the burner has activity like its trying to read it. It's not a bad burner, because I hooked the one from this computer up to it and I get the same error message. The burner is master on IDE-1 and the HD is master on IDE-2. As far as I know, all of my cables are the correct type and hooked up properly. Do you guys have any bright ideas? I've been up all night trying to figure this out, so if someone could throw some helpful hints my way, I would most certainly appreciate it very much. Thank you!