Thank you guys for the replies.
It's not a super big problem, because the times when you want to animate text in the way I mentioned isn't all that common. In the particular case of text in my current project, I just adjusted my original idea, and it's fine.
Next time I have that particular need, I'll just do a PhotoShop png and import that, as you suggested, Barry.
The speed of pre-set scrolling text works just as I expected, determined by the length of the clip, as you pointed out, Barry. That's exactly what I was already used to in previous software.
Thanks for making the clip, Carl, by the way. You're always so ready to help, and that's appreciated.
Tony, as for the "star fairy"--well, I didn't know before now that those rows of stars were reflecting anything besides a user's amount of participation here. Now I understand - Once in awhile I haven't been as patient as I could be, and I've expressed my frustration, sometimes with sarcasm. I am used to Forums which are a bit more free-wheeling in their discussion. I understand now, and plan on curbing my frustration when and if it comes up.
Carry on, men - Thanks again for the responses.
RB