I have a problem and am unable to used Netsuite on my Macbook.  The Main UI content becomes lost behind the header bar in certain areas of Netsuite, for example the File Cabinet.  The problem is not isolated to browser, the same thing happens in both Firefox and Chrome.

Click on anything in the above screen and the next screen disappears content behind the header and leaves me in a position where I cannot continue;

I consider the graphics resolution to be more than acceptable;