Problem opening report from drill through...

[sudhajan]

Hi....
I have a report with 2 prompts (optional) .. when i select any one of them ,,and run the report. The report gets displayed in few seconds..
I have a text item  in this report on the header , on which drill through is placed to open a different report . same 2 above prompt params are passed. And this drill through report is taking lot of time to open up . No sure why .
But when i run this drill through report directly with any of the params, it runs in few seconds.
little wierd , reports runs fast directly but from drill through its not !!

Looks some kind of issue of in drill through ..not sure though...
Could any body help me out pls

environment : cognos 10.2.2 / windows