http://bugs.winehq.org/show_bug.cgi?id=23180
--- Comment #8 from Andreas Hermann Braml andreas@braml.org 2010-06-22 12:02:00 --- The problem on native Windows was a missing printer driver, doh!
Now that it works, I can confirm: the X is there and active. Clicking it closes the application (tested on Windows 2000 SP4).