By reset BIOS, I meant power down, take the watch battery off the board, wait a few minutes, put it back in and start it up. Everything will be default, and it can fix a lot of more things.
OK Just did so. Same problem. Two things I've noticed that may or may not be relevant.
1) Sometimes when I start it, it gets passed BIOS and restarts instantly going back through POST/BIOS once more.
2) Twice now I've got 'Invalid Checksum' error. 'Load defaults or F2 for setup'...