http://bugs.winehq.org/show_bug.cgi?id=31258
--- Comment #6 from Andrew Eikum aeikum@codeweavers.com 2012-07-23 08:35:51 CDT --- This might still be invalid, but Stephan's log doesn't contain anything about the pulseaudio driver. In fact, he has his Wine set to only load the OSS driver.
Stephan, are you intentionally using the OSS driver? Is that the audio system you are using on your operating system?
What game are you trying to play? It seems to be trying to open an OSS device with a floating point format, but your OSS installation doesn't support that. What confuses me is how this worked in the past.