http://bugs.winehq.org/show_bug.cgi?id=10628
--- Comment #9 from Korn wine@temporaryforwarding.com 2007-12-05 11:17:59 --- I furthermore noticed that Portal just runs properly when the command to run Portal is executed just after the first trial did fail. When there is a longer time between both trials (do not know the exact time) the second one will also fail.