http://bugs.winehq.org/show_bug.cgi?id=29776
--- Comment #6 from supimbao@gmail.com 2012-03-17 09:53:50 CDT --- (In reply to comment #5)
Created attachment 39418 [details] Timedemo from portal with wine 1.4 (compressed with Gzip)
You need to start the game and start playing the demo just after that, or else the bug won't show up.
After testing I found out that sometimes the bug won't show up anyway, if that occurs, try playing the timedemo again.