I was able to figure out the resolution. As mentioned above, you have to have the codec install on your PC. I used Real Alternative (google it) so I didn't have to install the full-blown Real Player on my PC.

Also, I have the bitrate set to 96, which sucks, but allows me to play a widescreen episode of The Office successfully.

My next question: Orb has a setting to setup a uPnP server on the home network. I did this, and use Media Streamer to pull it up. I am able to browse my folders, but the same video that plays fine through the web interface will not load through the uPnP setup. Anyone else wanna give it a go?