Mainboard: GA-M55plus-S3G, Rev 1.2. Hard drives: Two IDE (80GB and 160GB), one SATA (2TB Seagate). Problem: After a power-off, the BIOS doesn't auto-detect the SATA drive. If I manually tell it to detect it, it does, but the drive is still not listed in the boot drive order, so I have to save the setup and restart, and then go back in and set the drive order. The next time the machine sits with power off, the problem returns. I've replaced the CMOS battery with a new, tested one. All other BIOS settings seem to be holding just fine. I've tried many different settings in the BIOS, but nothing seems to fix this. Any ideas?