http://bugs.winehq.org/show_bug.cgi?id=14752
--- Comment #19 from Lucas Fialho Zawacki lfzawacki@yahoo.com.br 2012-08-23 00:22:44 CDT --- Can the OP retest? I bought the GOG.com version on a sale and tested it with Wine 1.5.11 and the mouse seems ok. I didn't test extensively, but this seems fixed.