Hi,
to Oliver Stiebel and anyone else interested: I reported about a bug in wine 20050930 in October. Then Oliver suggested he might write a little test application for this bug. Well, the bug is still present in wine 0.9.1. Searching the web turned up a simple app for windows which is equivalent to glxinfo under X11 (see [1], it's called wglinfo). As this program reproduces the bug, I thought it might provide a good starting point for a test app.
regards, Daniel