I'm trying to get my old system (Biostar M6TLA MB, Award 4.51 bios) to adopt a SIIG Ultra66 ATA PCI controller as the controller for my 20g WD Hard Drive, but the system wont boot from the card, reporting "primary hard-disk fail". It works fine when I hook it back up to the MB primary controller. I think my problem is the EZ-Bios overlay on the drive as SIIG say to uninstall any overlay before trying the card. I have searched WD's site and asked their email support for help on how to go about uninstalling the EZ-Bios, but am finding next to nothing to help. Some other forums suggest that I load a program called EZ-Drive, go to advanced options, there finding the uninstall program, but I can't find EZ-drive in the WD Lifeguard Tools disk I have. I did find the EZ-Drive v. 9.01 on Driverguide, but am hesitant to use it until I find out more. I'm thinking that the EZ-Install program on the WD Lifeguard Tools disk is the later version of EZ-Drive. Is this right? If so, EZ-Install doesn't seem to have the "advanced options" option with the uninstall program. If someone could straighten me out, I'd appreciate it.