PrE has two "fixed" Audio Tracks, Narration and Soundtrack. Is there anything on the Narration Track in your Project in question?
Since PrE does not allow Track Locking, as does PrPro, I have not seen this message, and there must be something that is "locking" the Track. Can you do a screen-cap of the entire Timeline (hint: hit the \ key [Backslash] to show the entire Timeline). There might be a clue there.
Thanks for the quick reply. There was nothing on the narration track. I opened a new project and used some of the same clips and was able to add narration. So I will just start over with a new project, its only 10 dvi clips and some photos so it won't be a big deal.
Glad that you got it sorted, though I wonder what there was about your original Project that "locked" the Narration Track. That is odd behavior, indeed. Maybe someone will drop by with a "hey, that happened to me, but when I did ______, everything was OK."
If you happen to find the culprit, please report back and good luck,
BTW, welcome to the forum. I forgot that, 'cause I was focused on trying to figure out why the Narration Track was "locked."