http://bugs.winehq.org/show_bug.cgi?id=13529
--- Comment #12 from Andrius andriusmao@gmail.com 2009-07-01 21:18:09 --- maybe wineserver can't handle one application in one X server ( Xming in actual native X server ) and another application in a different X server ( any mswindows program in Xming's X server)