Hi Richard
Your information has pretty much established that you are in a BW system and analysis authorisations may/may not be involved.
What investigations have you done so far and what error are you getting? Have you checked ST01 for R_RS_COMP* authorisations and similiar. Then Have you executed a RSECADMIN trace to see if it failing on analysis authorisations. As part of RSECADMIN have you looked at which characteristics (as well as navigational attributes) are part of the cube and which of those are authorisations relevant?
I think you could do some basic analysis and get past the guess being authorisations. Unless you would like us all to play a guessing game as well?
Regards
Colleen