I've created a report for a client using a custom view in the application database. I put the report and view on their server, ran Database Maintenance to sync ownership, and added it to Screens and Report Control Maintenance. One user (out of three) can run the report with no issues. The two other users receive the following error:

I have checked the permissions on the view and they look fine. The only group that the good user belongs to that the others don't is the Administrators group; I temporarily added one of the faulting users to that group to test, but it made no difference. I've deleted the ODBC connection for both the app and system databases and recreated them by running another report.
Any suggestions? Thanks in advance.
Stuart Nottingham