http://bugs.winehq.org/show_bug.cgi?id=32291
--- Comment #6 from Henri Verbeet hverbeet@gmail.com 2012-12-13 18:32:54 CST --- (In reply to comment #5)
You don't have s3tc support. Try installing 32-bit libtxc_dxtn (I think the package is called libtxc-dxtn-s2tc0:i386 on Ubuntu), or set the
My bad, you're on Gentoo.