The only thing I can think of is to see if there's an updated driver for the Canon. But if they've opened before with that software, I'm at a loss...
the driver updates have never proclaimed to be camera specific and I've loaded the most recent.. in fact that's when the problem began, I think... hahahaha... I'll figure it out.
Ah! Then there's the problem - the driver update broke something. You have two options - revert back (and I'm not sure how to do that with Apple) to the previous driver, or wait for Adobe to release the next update to fix what they broke.