Passing Multivalue results between reports

Question

Hi Stackoverflow First Question asked

I have a SSRS 2005 report containing a number of matrices, each looking at different datasets and different groupings. however the end result is the same in that they are essentially doing a count of the same ID within each group

what i'm trying to do is use the navigation feature to jump into a report and pass it the relevant list of IDs

however in all occasions it seems to only be picking up 1 ID.

the second report is setup correctly in that the ID is a multivalue int

and i think the paramater being passed is correct i.e Fields!ID.Value not Fields!ID.Value(0)

any one have any pointers

thanks