http://bugs.winehq.org/show_bug.cgi?id=20181
--- Comment #28 from Roderick Colenbrander thunderbird2k@gmail.com 2009-11-17 13:03:13 --- The _dri.so files are sort of plugins for Mesa. You can't just preload them. I would just try to get a 32-bit glxinfo from somewhere and try that.