Wasn't able to get the error message (pressed F8 repeatadly during boot but couldn't find "no reboot on system failure". ) At what point should F8 be pressed - it would be good to know for the future.... I did two things (different driver package, tried sata positions 3&4 instead of 1&2) so I can't say for certain which worked. Should have done one at a time but its painful running 45min experiments, Sorry Fernando =) 1) Turned off RAID in bios, moved two drives from SATA positions 1&2 to 3&4. Enabled RAID in bios, rebuilt heathly array, selected correct boot device priorities. 2) Downloaded the chipset drivers from the Asus site Downloads>A8N-E>XP> Others. (nVidia Chipset(CK804) driver version V6.65 for Windows XP(WHQL).) Pointed nlite to the IDE\sataraid folder and added the two drivers as textmode. XP install worked fine with the new CD and stock Asus drivers. Comp is now up and running! Thanks for your help and a great tutorial. Cheers, Colin