Help!

I've have all of my tracks ready to go on DVD. I've layed out a main menu in Encore that has 3 options:
1) Play Movie (this option is linked to the playlist)
2) Scene Selection (This goes to a submenu with all 10 segments, plus a return to the main menu).
3) Credits (this option goes to the closing credits)

I'm self-taught on Encore, so I don't know what I may be missing, but once I build the DVD (and it does burn the whole thing), all I get when I put it in my DVD player (both the computer and my TV set's), is the main menu. I can't navigate or go anywhere. It's like it's locked up. If you hit any key on the remote, the DVD player gives you the "stop" sign in the corner.

Any suggestions as to what I'm overlooking? I sure could use the help.

This is a Tryout edition, but I don't think that's the problem, as Adobe says you have "full function" for a 30 day period.

Tom Brand