view mesh

Hi There,

I am quite new to working with point clouds/ mesh.  One problem that I keep running into is that at some point in the design process I can no longer "show" the mesh.  Normally you can "show/hide" the mesh from the right click menu.   But at some point the "show/hide"  is no longer available. 

The only thing that I have done that may have caused this is to do a save as to a new part name - maybe the mesh file got messed up?

See atched image of no longer showing view options.

SolidworksGeneral