Похоже, в отчете проставлен доступ по роли (Role Name в свойствах отчета).

Кстати, а версия какая? Мож, на предмет "побороть" метод 6-го репортса проканает?
ДокаDescription The Role Name property specifies the database role to be set for the report at runtime. You can use this option to give end users the ability to run reports that query database tables to which they do not normally have access privileges. Reports Runtime can only set a role that is granted in the database. If Reports Runtime cannot set a role, it will not run the report.
Values Enter a valid database role, not to exceed 30 characters.
Applies to reports

Required/Optional optional
Default The default role(s) specified for the user in the database, which are set when the user connects to the database.
Usage Notes

n You can set the Role Name property in the Property Palette for the Report; to (optionally) set a Role Password, double-click the button in the Role Name value field to display the Set Role dialog.

n If you specify a role using the command line with Reports Runtime (RWRUN60), it overrides the role settings in the report.

n You can set only one role for a report. To set multiple roles, you need to set a role to which the other roles have been granted.