http://bugs.winehq.org/show_bug.cgi?id=25912
--- Comment #17 from Dave Riegelmayer driegelmayer@insight.rr.com 2012-05-13 22:51:14 CDT --- The mouse event delay problem continues. However, I did discover that when running wine1.4 and Ubuntu 12.10 that by switching from a IntelliMouse 1.1a (which uses the round socket) to a Gateway model MOAKUO usb plug, the problem goes away.
The Intellimouse does work with SU on on a Microsoft OS. I am thinking that it might be relate between a SU MS driver and Wine.
This may help in finding an answer to the problem.