Thanks for the quick reply.
Wow, I didn't even notice that directory! Now THAT's what I call information! Exactly what I was searching for!
The nvidia-xconfig script didn't set up tvout for me. And I tried searching, but I guess my keywords were either too off or I'm too much of a N00b. I've been banging away at this box for a while now - about two weeks - so you can guess that asking for help doesn't come easily to me. I'm going to have to ask about sound next, and I dread that prospect... I've seen some of the problems people report with that...