http://bugs.winehq.org/show_bug.cgi?id=34761
--- Comment #2 from Dennis William Johansen DennisJohansen@GMail.com 2013-10-18 13:21:26 CDT --- I've tried with wine 1.7.1 and 1.7.4 too. They give the same results.
I know fglrx previously have had some issues with wine (I believe there was a workaround in wine for a while because of that?) - And Neverwinter Online works fine on nvidia proprietary drivers.
Testing with 74faebd68d738ef44cc5990e883091329f72d7d7 as the last commit gave a system lockup too.
The open source drivers aren't in a state that are usable for me. As in as soon as I log into XFCE, and it states "Loading desktop environment", the screen becomes a mess. The screen doesn't update from that point - So I can't say if it would give the same result with those, sorry.