BO ANALYSIS OLAP authorisation how to setup?

Hi experts,

we are on a fresh SAP BO/BW system with our company and busy with setting up authorisation for usage of BW queries in Webi, Design Studio and BO analysis for OLAP. Most of the things are done except for one.

I have configured a user in BW that has access to an infoarea and that can access/use the queries in that area (in RSRT/RRMX/Bex).

However when trying to open such a query from BO Analysis for OLAP the OLAP connection is accessible and it even shows the infoarea nodes on which queries are present. (the OLAP connection is configured for SSO of course)

But when opening a node nothing happens :(.

In SU53 we see a lot of errors, all about RFC function RSOBJS_GET_NODES.

i added these objects to our role but the errors do not disappear.

Can anyone give me a clue how to analyze this problem?

Thanx in advance.

Marco