When an item is not available because the required pre-reqs haven't been completed, on mouse-over the following message displays:
"Please complete all of the above required items before viewing this item"
In a previous version, if one right-clicked on the grayed-out link and selected 'open in another tab', the same message would be displayed in its own page.
In rc03, if you right-click and select 'open in another tab', a 404 error is displayed
Rutgers: The requested resource (/sakai-lessonbuildertool-tool/templates/) is not available.
Longsight: The requested resource is not available.