Alas, I think it's safe to say that will not be possible. The Oppo can provide an OSD over DVI because it is a video player - complete with a nice array of video chips that can not only handle the math but can do so without breaking HDCP compliance on the output (an absolute essential for a DVI/HDMI switcher). The 990's digital video switching (the DVI portion) is pure switching, similar to the component video switching on the previous generation of processors (that generation lacked not only OSD on component but transcoding from s-video or composite to component). The 990 just wasn't built to do this - the cost required would be significant (my SWAG from another recent thread was $100 just to get the OSD), which is a lot of money to get OSD over the DVI output when you already have it on every other monitor output (composite, s-video, and component).