User Permissions Problem

[Andy B]

I have set up my security on my DB and all is well, however on my read only permissions when you enter the DB the main form is exactly correct (ie read only and cannot be modified) however you enter a second form through this first one , but the second form is fully editable even though the permission settings are the same as for the first form.

Anyone have any idea how to make the second form read only ?????

Regards

AndyB