Have you tried to use the column from the DataSet used for report to populate the Paramaeter ListBox? Does it works at all?
I suggets you creating separate DataSet as SELEct DISTINCT Col2 FROM YoutrTable, and then use it in Available Values for your report Parameter.
_____________________________________________
"The only true wisdom is in knowing you know nothing"
"O skol'ko nam otkrytiy chudnyh prevnosit microsofta duh!":-D
(So many miracle inventions provided by MS to us...)
How to post your question to get the best and quick help[/url]