Email highpoint, tell them your problem, and they should send you unreleased drivers for the HPT366 chip, which supposedly fixes the incompatibility problem with IBM 75GXP drives. I contacted highpoint myslef when I had the same problem on my BE6-II, but I am using my Promise ATA/66 and since I will soon have an MSI 694D Pro-A I'm not even going to worry about testing those new unreleased highpoint drivers....well maybe they are released now on their web page, but they weren't when I contacted them.