I guess my brain is going a little slower than I'd liek today... but I just exported the obj from 2013 amd I'm going to try it with 2012. Not sure why, but even with 2013 the files just don't want to work with me... so many errors with using physical sun and sky. I uninstalled and reinstalled after deleting preferences didn't work. Not sure if anyone else has been having problems with the files :/