unable to view object table

I have duped our asset manager role to a another role read only (in the test system [:D]) This read only role i have stripped out the modify update and delete perms on the back end to 0, when my test user logs on they are getting the error unable to view object table. i have added the object table for read and execute perms only. any ideas

Everything in NAV is an object, and the definitions of those objects are stored in the Object table. Without permission into the Object table, the user won’t be able to do anything. When you open a form, it reads the form definition from the Object table. So take away rights to the Object table, the user can’t open the form, and the system will display that error.

Makes sense?