How Firefox & Netscape display pages?

98% of the viewers of the pages I make use internet explorer. However, there are always some visitors who use Firefox or Netscape, right? When I go to any of those browsers and load up the pages, they sometimes load ok, but at times they show up with like a space between images or something is out of place. Check www.canospizza.com to see if you can see the same problem. When you hit the refresh button, if the page is ok it will sometimes load with the error. In Internet Explorer the show up perfect. Please help me understand this…

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