I have an HP CD-Writer 9100. The Bios detects it properly, but my problem is that whenever I boot up or re-boot, Windows XP won't auto-detect it and it disappears from My Computer. However, if I go into Device Manager and tell it to scan for new hardware...BOOM...There it is... HP CD-Writer 9100...and there it appears in My Computer. If I re-boot....pffft...gone again. It's a nuisance having to tell Device manager to find it every time. I'm running an ECS K7S5A mobo with latest bios, AMD Athlon T-Bird 1200, 512 MB ram, RIVA TNT2 M64 Video, On board Sis7012 Audio and On board Lan. Can anyone help?