http://bugs.winehq.org/show_bug.cgi?id=27616
--- Comment #6 from NickNill dmbohdan@gmail.com 2011-07-17 08:17:47 CDT --- (In reply to comment #5)
Workaround is switch into "Desktop 2" by Ctrl+F2..F4 and there mouse cursor will show up and can be used for non-wine windows.
It doesn't work for me. I even see mouse cursor. I think that if window is not active - it mustn't grab mouse.