http://bugs.winehq.org/show_bug.cgi?id=4923
--- Comment #2 from Peter Åstrand peter@cendio.se 2007-10-12 01:39:56 --- I haven't heard of anyone fixing this problem, so I presume it still exists. If necessary, I can probably try to reproduce this again.
VNC is a good testbench, since when it "fakes" events, the delay between them is very short.