I’m learning AC2006.  I have been working with Layouts and Viewports.  I used to be able to click in a viewport and activate it as current, then right click and I'd get a menu which included “Properties”.  But something happened (I must have clicked the wrong thing) and now “Properties” does not show up on the right click menu.  Also the Viewport “Properties” had options for locking or unlocking what was to be displayed.  Now I’m trying to use the general “Properties”, but it doesn’t have the same control.

Any suggestions?

Thank You,
Roger