You're right about the version, sorry about that. I meant 13.0.2.x (Support Pack 2). Anyway, thanks for the info Don.
My eventual goal is to be able to filter the results that get displayed in a dynamic parameters choice list based on a selection condition from a table (i.e select col1 from tableA where col2=valueA and col3=value3). I spent a lot of time trying to find a way to do this in the crystal report iteself, but it starting to seem like this is no possible. I guess I will have to do what you suggested and put my own parameter prompt.
Thanks again.