Here we go again....I've searched the forum, but not found answers that could help me. On my upstairs PC, I've got one 120G Western Dig IDE drive (boot disk) and one 180G Seagate Serial ATA. All was working fine until I needed more space, so I bought and installed a 250G Samsung Serial ATA drive. Suddenly my Seagate is nowhere to be found. I've tried removing the new drive and running the original setup, but the old SATA drive is not there. Any thoughts?