Design Studio Crosstab input ready, but no input possible

Hi,

we use DS 1.5 for a planning-applikation.

We use one cross tab for several input ready queries to plan our HR-Environment.

We use a script to change the DataSource of the crosstab depending on which button the user chooses.

The script sets the crosstab input ready,but we are not able to type in some values... the cell is Input ready an we see the cursor but when you type a number the values does not change ...

I'm not able to find the Problem. Is it a Problem to use for one crosstab several queries ???

Thanks

Simon