Question about drilling thru from crosstab to detail list

[Arsenal]

Hey Guys,

I have a crosstab in RS(created off a cube) and a list report(created off a relational datasource as nomal). I want to be able to drill through from the crosstab to the list.

So, I went about setting up the drill format in RS for the crosstab. Everything works but the date parameters. I'm using a tree prompt for all my prompts. However, the date prompt just won't pass the parameters - doing so results in Cognos returning an error concerning expected date format for the list report.

The crosstab has the date filter setup with a IN and the list report has the optional prompt setup with an in_range

Any ideas/suggestions please? :-[