http://bugs.winehq.org/show_bug.cgi?id=2989
--- Comment #18 from Sami Olmari jaarli@mbnet.fi 2007-10-29 14:42:10 --- Well this occurs also when one tries to start an application in (not using DISPLAY, just starting the app) X screen 1 when another one is already running on X screen 0. Comes error.
Also I think this bug should get more priority as multimonitor setups are becoming more and more common, thus are the separate X screen setups...