Finally got my replacement card in and hooked it up. I can indeed run a duplicated main monitor setup with my tv. They're both 1080p. My secondary display is only 1680x1050.
However, I keep getting issues where the monitor setup is forgotten. It will rearrange my windows to different monitors and also change the resolutions. I'm not sure if it's a Big Picture issue or just Windows itself having issues.
Turns out that my issue is caused by the receiver turning on and off. Every time it changes state while the computer is on my monitor setup gets all jacked up. Windows get moved to the wrong monitor, resolutions change, etc.
Anyone else had this problem? Any suggestions for a solution?