Everyone:
Thank you so much. These are all fantastic suggestions. Help is much appreciated.
Your suggestions caused me to go back and revisit the problem, and I think I have foudn the solution, unrelated (sorry!) to the screensaver. Will be runnign tonight so we'll see. Thanks again for your help.
I do need help with something: I'll post it on a new thread, but simply, here it is. If I want to run three scripts in succession, but do not want to consolidate them into one script, I assume the best way is to write a script that "calls" the other three scripts . . . ?