Curious. I shut down the laptop and went out to dinner.
I returned, started up the laptop and the transparency problem in Firefox is gone. However, it still persists with Chrome. I am using the default them in Chome, although I tried switching to another them and then back to see if it would improve.
Below is another screen shot where it is more evident that a portion of the Chrome menu bar is invisible. If I click the right area it works as if it were there. 
Thanks for any suggestions,
Todd
