I just removed Slider Revolution as the source of my headers and switched them to coded Text Widgets in my Header widget area. They appeared fine at first but for some reason they are all appearing oversized rather than 100%.
I have allowed access to my site if need be!
Here is an example of the code I use in the text widget;
<img src="http://themilliondollarserver.com/wp-content/uploads/2015/06/Website-Header2.png" alt="Blog for Waiters and Waitresses" style="width: 100%; height: auto;">