I just upgraded to X7 on a MacBook Pro, and found that EndNote had changed all my fonts to the default. I use foreign language fonts (Greek, Hebrew, Arabic) in multiple citations, and that formatting is all gone now. If anyone else uses more than one font in the database, you had better take a look before you print.
In my case, I am right t the end of a 6-year process of finalizing a PhD dissertation, and I now have a 100,000 word manuscript that is filled with errors. The company says “Yes, it does appear that X7 is not unicode compatible,” but that they “don’t know when” they might get around to fixing this error. Anyone else with this problem?