Fix Fuzzy Display

A couple of our Macs have become victims to fuzzy graphics/text for no apparent reason.  For example, today on Ash, there was only fuzziness in the Student account, but everything was clear in the NMC account.  Restarts did not solve the issue.  Turning on System Preferences seemed to help, but soon enough, the fuzziness returned.

The solution, you ask?  

Zoom in on the display and then zoom all the way back out, and everything should be clear again.  Somehow this "resets" everything to look normal.  

To zoom in, hit Command Option +

To zoom out, hit Command Option -

This solution has worked on Ash and Johnny Five.  

JMM