No OS on restart as comp tries to boot from USB drive.

I've never flashed my BIOS and would do it with great hesitation.
You may want to post some jpg images of your BIOS screens relevant to the discussion so far.

Just set Your PC Boot Priority, First in your Flashdisk :)

CalypsoArt said:

Thanks all, I've done all the suggestions other than flashing the BIOS and reseting the CMOS. At anyrate, with all drives plugged in it seems to be booting correctly--again. Also,I'm pretty sure I reformatted the 1TB drive after removing the OS, and I never had an OS on any other drive. Still, If plugged in, the Boot does show the FreeAgent USB drive as a boot device. Should that be? I even set it to disabled onece. Anyway, I'll keep an eye on things if the erros come back.

There is a BIOS update for my board but the ASUS site says do not update unless necessary. Also the update requires formatting s USB drive with Fat32 and running FreeDOS etc to flash. More work that my current time allows to ensure I do it correctly. When my work slows down I'll look in to the Bios update and installing my new CPU cooler.

My suggestion was to flash the BIOS from Windows which is safest. If your system is booting correctly now then I would not flash BIOS if your only choice is to flash from DOS, unless you've done this before and are confident of it.

If you're still under warranty, I would have your tech support walk you through flashing BIOS after backing up the BIOS so that they are literally on the hook for any problems which occur.