Roles not working on e-newsletter plugin

We bought and installed the e-newsletter plugin on our multisite installation. We've setup roles to limit user access but when a user of a role given rights tries to edit or create a newsletter I get the "cheatin' uh?" message. We use members plugin and the new user capabilities are noted and checked as enabled within that but still not getting access. Problem persists even with members plugin deactivated. We need this feature to work.