When printing from Aperture 3.4.3 I occasionally make a mistake in setting up or the printer software tells me that I need to make an adjustment to its set up before I print. I find these errors on the last print instruction menu and have to 'cancel' to return to the previous menu to make the alterations. So far so good. After the 'cancel' is hit and the last menu disappears Aperture freezes? No beach ball, no gears and not highlighted in Force quite menu. Resolved - so far - bye 'force quitting' Aperture and starting again, trying to remember the change needed to complete the print. Time consuming, frustrating etc. etc.. Please solve this for me! Thank you!