I've moved the primary master (cable select) boot disk from an old computer with a dead motherboard to a new computer and would like to use it as a secondary hard drive and retain the data currently on it. I had hooked it up to one computer (as the cable select -> slave drive) and it was automatically named as the D: drive and worked fine, but now I've installed in the new computer I want it in and XP won't let it show me. When I try to populate the drive, it gives me a letter C: drive, but that's the primary master drive so it does nothing. When I enter Disk Management, I cannot change its drive letter because it's greyed out. How can I make this drive not a boot drive and accessible without reformatting it? THANKS!!