[Bug 25241] New: Steam: Source based games will not start

http://bugs.winehq.org/show_bug.cgi?id=25241

Summary: Steam: Source based games will not start
           Product: Wine
           Version: 1.3.6
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Source based games will not start in steam after recent updates to Source
engine.

A popup window will appear with text "Preparing to launch Counter Strike:
Source...". Then the pop-up disappears and the game will not start.

Same happens with all Source based games.