I updated my program the other day to version 8.0.1483.
My Outlook mail is set to open the next message on deleting the current one and since the update when I delete the current message (or click for the next message) that message opens with 2 Avast Antispam toolbars, delete that message and the next opens with 2 toolbars and so ad infinitum.
Not a huge problem but my reading panel gets smaller and smaller!