I am having problems with the aspect ratio setting with WinTV-HD. For some reason it will not let me choose anything except the 4X3 setting, everything else is grayed out. I am running W2K with a Radeon 64 VIVO, WinTV-HD running through a NEC 6620 switcher. Set strictly for external DVD scaling and HD play back. Play back is fine with the exception of it not being able to fill my front projection screen (NEC PG-9). Yes, I have checked my monitor settings within W2K and it is set to "default" and I am not able to change this, it is also grayed out (this would help). Any help would be great. I have sent email to Microsoft and Hauppauge, I have not heard back from either.