Hi folks, Am I missing something obvious here? I don't use the AVR300 for video switching, as I have an Iscan HD+. However, to view the AVR300 setup onscreen, I have to connect the mon output to the plasma through a separate composite cable, which means I have to switch inputs on the Plasma just for using the setup. Connecting the same cable (or S-Video, or component) to an unused input of the scaler does not produce any picture! I wonder why not, since every input of the Iscan scales to DVI 576p perfectly- using dvi (DVD), component (satbox) and composite (vcr) as inputs resp. Any idea?