Compaq presario R3000 laptop hard drive going bad. IMPOSSIBLE to replace drive because BIOS doesn't see new drives although they are listed as tested and compatible e.g. original drive seagate ST94019A; replacement drive ST960812A - Seagate and Compaq both say the bios will recognize any ata-100 drive up to 80GB. I think there's some proprietary BS going on because the BIOS still recognizes the original drive - which continues to work although very poorly. I've flashed the BIOS to the latest version ( F.45) Thanks for any and all help/suggestions.