http://bugs.winehq.org/show_bug.cgi?id=10435
--- Comment #16 from Luke Bratch l_bratch@yahoo.co.uk 2009-10-12 15:14:44 --- Just did a quick test on a couple of levels with portals in various directions and this seems to be fixed. This was with default Wine and game settings (if I recall correctly, different settings caused noticable breaking/fixing of various glitches in the past).