I'm new. My viewport is black.   After upgrading ram 16, new ssd, Elcapitan, installed parallels11, windows 10, composer 15 ...everything seems to function correctly. When I open any file from the composer browser library, currently Helicopter, the left Pane has views , yet the viewport is black. If I hover my mouse over the viewport, parts are then highlighted in green -but thats it. 

Any help is greatly appreciated.

C:\\Program Files\\SOLIDWORKS Corp\\SOLIDWORKS Composer\\Samples