AcidArrow

I have an UDMA66 western digital HDD and everything was fine with win98. I installed win2k (had to change it back to UDMA33) and now I can't put it again back to UDMA66 . If I install the old drivers the system hangs up. So there is no UDMA66 available. Win2k won't see it and I have to use it only at 33. Anyone can help? My motherboard is an ABIT BE6