I have an AVRISP mkII and have re-flashed bootloaders on Arduino many times (lots of Unos, but not a Mega (yet)).
Providing I can find it, I should be able to bring it in tomorrow.
Sam
> --
> You received this message because you are subscribed to the Google Groups "Makers' Alliance" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to
makersallianc...@googlegroups.com.
> For more options, visit
https://groups.google.com/d/optout.