http://bugs.winehq.org/show_bug.cgi?id=23746
--- Comment #1 from Jeff Zaroyko jeffz@jeffz.name 2010-07-21 20:34:38 --- Thanks for the bug report, unfortunately the attachment is missing debug symbols.
See the latter part of http://wiki.winehq.org/Backtraces which has an example backtrace that shows more information, you may need to install a wine-dbg package and produce the crash again, or failing that build from source.
Please also include your video card and driver version.