Michael,
I can't reproduce the reverse image even making it several feet wide. I tried the same images on both mactel and pc with the same results. I have had people using the older macs mention that the images are reversed.
I sent you a picture to test on your machine.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"