Hi Dan,
The mobo is an asus P4B533-E, with updated bios, the mobo sees the 200gb drive ok, LBA is enabled, windows sees it as a 186gb (200gb) which is correct, but the issue is only when i goto FORMAT the drive......i have tried to format the drive with external tools, it formats it to 200gb ok, but when i click on it in windows it asks me do i want to format the drive, i say ok, and it will come back as unable to format the drive. I had a friend do it useing his xp, and he didnt have a problem, i then fitted the drive into my pc, and it doesnt ask to format the drive, but when i exceed ~130gb it locks the machine up.....