http://bugs.winehq.org/show_bug.cgi?id=27823
--- Comment #4 from Michal Suchanek hramrach@gmail.com 2011-07-17 16:16:36 CDT --- with that flag I get
util/u_upload_mgr.c:175:u_upload_alloc: Assertion `offset < upload->buffer->width0' failed.
and the application quits (in addition to the message about flags, repeated numerous times)