http://bugs.winehq.org/show_bug.cgi?id=35783
--- Comment #15 from Ken Thomases ken@codeweavers.com --- (In reply to Christopher Cope from comment #14)
Created attachment 48353 [details] Another Backtrace
That backtrace is deep inside your graphics driver. While it's not impossible that a bug in Wine would cause a crash with a backtrace originating inside the graphics driver, the fact that it's a division by zero and that it's so deep in the graphics driver's code suggests that it a bug in the graphics driver. Try a different driver and/or file the bug with the driver vendor.
Michael Curran's backtrace in comment 5 / attachment 47906 is also a division by zero and also inside the graphics driver, although not as deep (although that backtrace doesn't seem complete).