Hi Chuck: Boy frustrating and confusing. I can't tell you what it is but here's some more data to collect which may help resolve the problem. First of all lilo. Can you hit a shift key after the boot up beep and get a boot prompt using the hard drive? This test is to test if infact it is seeing the drive at all? It almost sounds like an addressing problem between linear block addressing and the older style. Is lba mode turned on in the advanced bios settings? What do you have compiled into your kernel? Is dma and udma used by default when available compiled in? Is there raid hardware on the new mother board? I have heard of folks having problems with raid hardware but nothing specific. Well, that's it for now. Check those out and see what you have. Kirk -- Kirk Reiser The Computer Braille Facility e-mail: kirk at braille.uwo.ca University of Western Ontario phone: (519) 661-3061