When viewing my website through the Admin page, it appears to be normal.  When I manually type my web address into a browser it shows the mobile version on my Macbook laptop.  

Also, when viewing from an iphone or Macbook, it's displaying the mobile version, but my logo at the header doesn't appear.  If I change the settings to not use mobile header, the logo appears, but it's in the center of the page, and the sizing of the mobile page is significantly smaller.

My website viewed perfectly last week, so I'm not sure what I have done to the settings.  This was happening today before and after I did the update.

Sounds like your browser is zoomed in so the screen resolution is low. On windows you can zoom in and out Ctrl and the + and - keys.

It's at 100%

What does it say your screen resolution is here? http://whatismyscreenresolution.net/

1680x1050

There was a lot of left/right padding for your header in your theme that might have been causing that. I fixed that and also fixed your mobile header. 

See if it is doing it now. It looks like to me on my comptuer.

If you think it is still showing a smaller screen  version, email me a screenshot of what you are seeing.

It's great now, thank you!!!  I originally had a lot of padding before I realized there's a checkmark for "center header content".  It was weird because previewing through admin looked perfect.  Thanks again :)