Sub-Reports not working.

Hello,

I am using crystal reports xi-r2 I am having trouble getting an on-demand sub-report to work. After much trouble I am able to get the sub-report to work in the designer but as soon as I publish the report and access it from the CRS. It stops working. I can not get the sub-report to come up. Or it opens another window like it is going to show the sub-report but I get the original report again.

Thanks for your help.

Jeff