Here's what I did (or screwed up): -boot camp partition, worked! -puts dvd into superdrive, eject without fail. Superdrive is probably spoilt. -connect external dvd drive, "no bootable device" -deleted the mac partition and formatted a pro-windows partition. -tried again, with "no bootable device" as result -retraced my steps, tried reinstalling macosx. unable to reinstall due to compatibility. im gonna cry. can anyone help with this?