[Sertorius]

Thank you, Patrick.

I'm not sure what you mean by "work-around", so if you would, please define. I can tell you this. I went a head and removed the entire program and reinstalled it, this time without the patches provided. Unfortunately, that didn't solve it. All I can get is the unit/hierarchies to do is to highlight. I normally use a track ball and substituted a mouse to no avail. I checked the computer (this is XP, I know) against a "Belarc Advisor" and it doesn't look like that is the problem.

Of course, I am doing everything I can to insure that this isn't a case of "operater headspace and timing." :-) In the meantime I'm going to keep working with it.

Thanks for the answer about "amc."