Reply To: Header Image Misalignment

OK, this isn’t working as I would have thought.  This is what I’ve done with the results I received:

– Created an image 700px by 100px. WordPress wants to crop it to what appears to be the 960px by 100px aspect, which effectively makes the image bigger but poorer quality.  See 700px100px

– Created an image 300px by 100px.  Wordpress wants to crop it to what appears to be the 960px by 100px aspect, which effectively makes the image bigger but much poorer quality.  See 300px100px
– Created an image 960px by 100px. WordPress accepted it without asking me to crop it. But it sits above my menu. See 960px100px

I just want it to be positioned like the demo header! How can I approach this different to make it work?