http://bugs.winehq.org/show_bug.cgi?id=11487
--- Comment #2 from Dylan Fahey faheyd@yahoo.com 2008-02-06 11:17:46 --- Created an attachment (id=10640) --> (http://bugs.winehq.org/attachment.cgi?id=10640) File attached, has xorg.conf and console output when running wine/steam
Not exactly sure what you meant about "Have you tried to remove / rename ~/.wine directory before reinstalling Steam?"
Except for the Gecko problem, the steam install went OK.