http://bugs.winehq.org/show_bug.cgi?id=15549
--- Comment #6 from Dmitry Timoshkov dmitry@codeweavers.com 2008-10-09 00:56:41 --- (In reply to comment #5)
Of course, Wine doesn't do it that way, it currently relays through the standard X11 methods, this is the problem. X11 behaves differently than windows. We just need to find a way to get around this when programs don't consider that undocumented Windows behavior may change.
I'd suggest to stop speculating, the problem needs to be investigated first.