http://bugs.winehq.org/show_bug.cgi?id=22362
--- Comment #2 from Mathew Davies thepixeldeveloper+wine@googlemail.com 2010-04-15 12:15:38 --- (In reply to comment #1)
That's probably because the GLX_SGI_video_sync extension we use in IWineD3DSwapChainImpl_Present() for vsync is never going to be present on wgl. We should probably be using WGL_EXT_swap_control anyway.
Ok, thank you for the prompt reply.