List of Values (LOV) groups does not open

Hello,

When I have a WebI document that has SAP BW as the data source and I refresh the report, I get the Prompt dialog box.  One the of the Prompts contains a large number of possible values, so the values are automatically grouped alphabetically.  When I try to open one of the groups, I get a "spinning" icon, but the folder never opens to reveal my list of values.  This is occurring in SAP BI 4.1 SP3.  This same behaviour was not occurring in SAP BI 4.0.

Any ideas?

Thank you,

Scott