Shaded w/ Edges problem

For some reason, on some of my electrical cables (harness with connectors & routed cables), when I have the view mode set to shaded with edges, it displays as shaded with wirefram (i.e. you can see all edges on the connectors).  I have the Options-Display/Selection-Edge display in shaded with edges mode-HLR so it shouldn't be doing this.  Anyone seen this before or know how make it stop?  It's driving me crazy.  It only does it on some cables, not all of them.  It really bogs my system down because if I try to edit the route in the context of the overall assembly, it makes everything shaded wireframe. 

Thanks!

SolidworksRouting