http://bugs.winehq.org/show_bug.cgi?id=30270
--- Comment #15 from Loris Zinsou the-lz-himself@orange.fr 2012-05-04 12:25:20 CDT --- (sorry for the double post) I thought about this because Rage fails complaining about missing opengl extensions, while these are present in the used drivers.
If steam and rage complain about the same issue, on both optimus and non optimus computers, is it possible that would be a long standing bug in the way wine exposes openGL extensions to the apps ? (which is only triggered in some cases, like new steam version or optimus gaming ?)