I have just installed Atahualpa, so please excuse the newbie question. I have two horizontal bars in my header and I can't figure out how to remove them. Please take a look at the site to see what I mean. Thanks!

Never mind. Stupid question. All I had to do was remove the following line from ATO -> Overall Style and Config -> Body, Text and Links:

background: #fff url('<?php bloginfo('template_directory'); ?>/images/background7.png') repeat-x top left;

Duh!