They are ignored outright, but I think it has to do with resolution. The DVR is outputting at 1080i. When I hit the menu button I can here the 990 switch to 480i and then the menu appears on the screen (both screens). Without a second component output you can only view the HD signal over the ONE output. So, zone two video would only work with composite or s-video.

I guess that makes sense, without any scaling capabilities the 990 can't send the signal anywhere but over component (or DVI)

Soooo....back to one of my original questions. If I get an HD Fury (which have come down in price now, monoprice has them for $64 now) and connect everything up DVI, will the one component monitor out be live? I could adapt that to composite correct?