http://bugs.winehq.org/show_bug.cgi?id=5480
--- Comment #5 from Ben Hodgetts (Enverex) ben@atomnet.co.uk 2008-06-12 14:05:36 --- Trying to test but STEAM wont run any applications at the moment, seems I've run into (quoting from the Note on the AppDB Page): "Won't start with no error message (completely re-install wine and start from scratch)"
Fun. No-one filed a bug for it either. No idea what caused it or how to reproduce, trying to fix now.