http://bugs.winehq.org/show_bug.cgi?id=24406
--- Comment #18 from Jari Vetoniemi mailRoxas@gmail.com 2013-06-23 06:04:59 CDT --- Cherry-picking the reverted "f41fdb225cf1e1df494237664ce92e51179f3725" "fixes" the issue.
Looking at the diff, the issue is still that modern cards don't report ARB_VERTEX_BLEND extension, even if they support it(?).
Think this issue is duplicate of #6955