I'm using Windows 7 and have an issue with a single dwg file, as soon as I push the print button AutoCAD goes to "not responding" and never comes back out of it. I have opened the same dwg file in LT 2012 and it prints without any problems. Also, all my other dwg files from other projects print without error in both 2012 and 2014. Have run an audit (no errors found) and purged all in the dwg and still no luck.
I found a forum on another site that indicated this issue has to do with AECCORE.crx file however was not able to get the fix they recommended to work.