Assembly now shows up low resolution

Hi, I've recently run into an issue with my assembly that used to show up very high resolution.  Now when I open it, everything looks dull and low resolution.  When I open the part in question, it opens very high resolution.

I had twiddled some settings after which this happened but have tried to get back to the older view with everything at hi-res.  No luck.

Any ideas?  Here is the component (white processor board) at the upper assembly.

And here it is when I open the board by itself:

They used to be the same until I did...what?

Thanks
Bill

SolidworksGeneral