Coockpit -GRAVE: Required parameter "parameter" is not set.

Hi,
I'am trying to develop a composite document made up of 4 documents (SPAGO BI STUDIO 5.1, Spago BI all in one 5.1.0) Each document is a table.
The first document is a table with a list of data and the user can select one data to pass parameters to other reports. The click is developed using javascript:parent.execCrossNavigation....
Each document refer to a parametric dataset (I created a dataset in Spago Studio) and I create AD in SpagoBI.
Each report works well separately but when I put together reports the first report is not show.
The error is (in the log file) is GRAVE: Required parameter IdDipartimento is not set. where "IdDipartimento" is a parameter in the dataset and a AD in SPAGO. IdDipartimento is not a parameter that I pass in the cross navigation.
The problem is not in the xml configuration because if I define data in dataset (and so the dataset is not parametric dataset) all works fine.
The other reports are parametric: i create from spagostudio a parametric dataset, I deploy the document and I put the appropriate AD. They work fine. When I open my cookpit I can second, third and fourth report but I cannot see the first
Let me known if you can solve the problem
Anna Lisa

Any answer????? I am waiting for expert's answer!!!