Hi why See different my web Header in internet explorer and Firefox From Google Chrome and Opera.
I change some files in stylesheet.css of my template:

TR.header { background: #ffffff; background:url("images/logo.png"); background-repeat:no-repeat; }
body {background:#ffffff; color:#52697E; margin-top:10px; font:12px Arial,Helvetica,sans-serif; padding:0; text-align:left; font-size:11px; font-family:"Lucida Grande","Lucida Sans","Verdana","Arial",sans-serif; background:url("images/fondo.jpg"); background-repeat:no-repeat; background-position:top; background-attachment:fixed;}
and more.. but is in this options that change the header.
the TR.header image size is: 950px × 120px, is too big?