I have a HDD from another system that won't boot (after sitting outside the case for a few days, and upgrading the MoBo. I'm pretty sure it wasn't exposed to anything magnetic or statically charged, ...

I bought a new hard drive today (30 gig Maxtor 7200). I formatted it and installed windows. No problem. I went to hook up my old hard drive (same as new one) to copy over all my mp3s etc, and windows ...