Building new computer, a7v8x, xp-m2200, 1G, xphome. I had some problems installing xp due to bad keyboard, had to install xp several times. I've got an 80G hard drive I want xp on and a 160G. At some point I installed xp on the 160G by mistake. I've since reformatted both drives, but now everytime I start the computer it wants me to choose from two versions of xphome, with a 25 second delay unless I choose a version. If I pick the top selection xp runs, if I pick the bottom selection it tells me there's no OS there. How do I get back to one version of the OS? Thanks