http://bugs.winehq.org/show_bug.cgi?id=31122
--- Comment #5 from Michael Stefaniuc mstefani@redhat.com 2012-07-05 15:36:54 CDT --- Hmm ... now I see it: your description talks about an assert in unsafe_impl_from_IDirect3DIndexBuffer9() but the attached backtrace has an assert in unsafe_impl_from_IDirect3DVertexBuffer9(). Are there multiple asserts?