http://bugs.winehq.org/show_bug.cgi?id=24679
--- Comment #13 from aerilius@googlemail.com 2011-04-20 08:50:56 CDT --- Created an attachment (id=34238) --> (http://bugs.winehq.org/attachment.cgi?id=34238) WINEDEBUG=+wgl wine sketchup &> log
It seems SketchUp requires a special PixelFormat for software rendering.