http://bugs.winehq.org/show_bug.cgi?id=31161
--- Comment #7 from John Yani vanuan@gmail.com 2012-07-07 10:24:41 CDT --- Running with MESA_DEBUG=1 shows:
Mesa warning: couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable
Its strange, because I have libtxc-dxtn-s2tc0 installed.