Can you force a refresh of the default values of your parameters?

This is regarding Report Services 2005 designing the report in Visual Studio.

Currently I am using a query to populate 2 date selectors in the parameter section at the top of a report. The start and end dates are determined by a query which returns the values based on yet another parameter. If I change the value of the paramter which is supposed to be used by the date selectors they don't seem to feel the need to re-calc themselves. I have 3 other dependent param's in the same report which behave reasonably.

Has anyone seen this before or is there way to somehow force a parameter re-caluclation?

jSiegel

[728 byte] By [jSiegel] at [2007-12-22]