Andy-
Wow - quick response! Thanks so much!
That was one of the suggestions from the old message posting from a year ago. No dice. I can jump to another application, come back, hide Textmate, come back, quit Textmate, relaunch - everything! And nothing happens. The new file remains in the project drawer, and the old one still has to be re-added.
Is this the kind of thing re-installing would fix? I'd like to avoid that if possible.