http://bugs.winehq.org/show_bug.cgi?id=8569
------- Additional Comments From l_bratch@yahoo.co.uk 2007-02-06 13:13 ------- This happens for me too.
However there was a Steam update at exactly the same time as I updated Wine, so it could be a change in Wine or Steam that broke it.
The update worked successfully, but when it tries to run it appears to have frozen, but if you leave it for a while, Steam gives an error message that it cannot connect to the Steam network.