http://bugs.winehq.org/show_bug.cgi?id=9983
--- Comment #14 from Vitaliy Margolen vitaliy@kievinfo.com 2007-10-18 00:14:01 --- (In reply to comment #13) What exactly did you run? If you run "hl2.exe" directly, then it's invalid. You should start all steam games via steam GUI or using "-applaunch" command line option.