Problem with Editor Width Formatting

Folks,

I'm setting up a CKEditor window via jQuery -

        $('#fw_review').ckeditor({
          extraPlugins: 'stylesheetparser',
          contentsCss: '/css/emergency_fax.css',
          resize: 'auto',
          toolbar: "Basic",
          width: '100%'      
        });

I've attached the outcome.  

Firstly, the toolbar isn't "Basic" (as far as I can see).  

But more importantly the bottom bar appears to the side of the content, rather than underneath.  And this messes up the whole width situation.  

I'm using 4.3.3.

Any clues as to what I'm doing wrong.

Phil