If I understand correctly, there seems to be a snafu related to patents which is delaying a fix. See e.g. http://bugs.winehq.org/show_bug.cgi?id=14939 http://en.wikipedia.org/wiki/S3_Texture_Compression http://www.opengl.org/registry/specs/EXT/texture_compression_s3tc.txt You might be able to patch wine yourself to get around this, if you're sufficiently skilled and motivated. I haven't verified this myself.
