Analysis for Excel with BI 4.1 SP2

Hi,

Background:

We are using BI 4.1 SP2 along with Analysis for Office 1.4 SP5. We are using BEx queries as data sources in Analysis workbooks and storing them in BusinessObjects platform. Users log into BI Launch Pad with SAP authentication to the BW system, where the Bex queries are stored.

Problem:

After users are logged into BI Launch Pad and run the Analysis workbooks, they get prompted to logon to the BW system again. Any way we can avoid having people login again? Any setting in the registry or on the BI server?

Sonni