this seems to be an issue when command objects are used and tables, and the parameter is used to filter the data...both in the command and the report.
at least that is the usual description of things.
what comes to mind is to use the parameter only in the command or only to filter the data, but not both.
this seems to be one of the few drawbacks to using the command object.
The question that arises is are there real tables in the report or just the command table?