"Problems accessing data" Error in BI 4.1

Hi,

I am creating an application in DEsign Studio 1.2 using the iPhone template which connects to a Universe (UNX) on BI 4.1. All works fine and am able to publish and view on the BI 4 platform. However when a user other than the author of the application accesses it the following error is displayed:"Problems accessing data"

I have looked into access rights and it appears that this is not even accessible to the Administrator account. I have checked the CMC for Application rights and Design Studio Run time has full access.

Is there any other access rights I should be looking at  ?

Thanks,

Ryan