http://bugs.winehq.org/show_bug.cgi?id=23591
--- Comment #2 from Jeff Zaroyko jeffz@jeffz.name 2010-07-10 04:05:15 --- attach regular terminal output without WINEDEBUG options, if no backtrace is printed then the application is probably obscuring it, you can try getting one using winedbg.
http://wiki.winehq.org/Backtraces