http://bugs.winehq.org/show_bug.cgi?id=8786
------- Additional Comments From l_bratch@yahoo.co.uk 2007-24-06 16:45 ------- I just tried again with a different dinput8.dll (from dll-files.com rather than an old XP install), and this completely fixes the smoothness of the mouse input for me.
It does introduce a new problem though - there now seems to be a box in which the mouse can move which is smaller than the window, so you can't completely move around the menu, and you can't look all the way around whilst playing for instance. The box does seem to move around if you click and drag though.