Suppose I have two seperate hard drives, one with Windows 98 Op Sy and the other WinXP, and I connect them both to the IDE cable from which op system will it boot? I had win 98 and now I bought another HD and installed XP but I want to use both seperately as I dont want to format the windows 98 HD? How do I boot either from the Win98 drive or the XP drive. 