You were going to get a GTX280 anyways I feel like

There are already BIOS fixes out there (including an official MSI one) for it so its probably either a BIOS issue and the first wave had the wrong BIOS loaded or the drivers haven't enabled the cards to do it yet. Supposedly its coming down the line but it hasn't been confirmed either way. I recall the 3800's had this same issue at release that drivers did fix though.