SSO and BOE 3.1

BOE 3.1 is setup to use SSO. If a user navigates to http://server/InforViewApp they are automatically logged in. This is not my problem. My problem is that when the user clicks Log Out, they are immediately sent back to InfoViewApp and logged back in. This presents a problem due to the number of users and the number of concurrent licenses we have.

Does anyone know how to resolve this?

Thanks,

Jeremy