As a user I don't want to see an already readed tipp every day

The totd portlet has only the Show or no Show on loggin or after some days. It would be helpful for the user to have the ability, for example via a Checkbox, the a specific tip should marked as read. The portlet should checkk after loggin wether there are tips to Display AND was not marked as read by the user.

This should only affect the popup Window and not the "Display tips now" Navigationentry in the Dockbar.

This Feature would make the portlet more Enterprise-Ready.