Crystal Reports Error Message - Illegal Link Cycle

Hi all,

I'm wondering if anyone else has come across the error i'm getting in my application.

I have an app which allows the user to select one of a selection of reports and fill out parameters etc then view the report. Most of the reports are fine but one i particular has a strange problem.

I can run the report fine once, but if i try to run it a second time consecutively after the first run (changing parameters) i get an error saying:

Query Engine Error: "This query cannot be performed. An illegal link cycle was detected."

I have absolutely no idea of what causing this as the rest of the reports seem to work fine in when ran one after the other.

If i restart the app after each running of the report it is fine.

Any help is greatly appreciated.

TIA.