Thanks for the information. I tried removing it in System Preferences and then reinstalling it. That made A3+ appear in the print dialog, although it still doesn't show up as a document size in Illustrator or InDesign, which it did with my old i9900....
I just purchased a Pro-100 (my third Canon wide-format printer in a row) and the A3+ paper option does not show up in the print driver, nor is it available from Photoshop, Illustrator, or InDesign. I'm on a Mac running Mountain Lion (10.8.5). A3 is t...
