http://bugs.winehq.org/show_bug.cgi?id=21543
--- Comment #1 from Alexander Scott-Johns alexander.scott.johns+winebug@googlemail.com 2010-01-29 22:09:12 --- This doesn't appear to be window manager issue (I tried both metacity and compiz), but this bug doesn't occur in Xephyr + metacity: when gnome-screenshot is closed, the clipboard is cleared.