Sitemap Stats Browser Discrepancies

This is strange. My crawl stats are different in Firefox than they are
in Opera. I cleared both browser caches, and still different. Opera
shows a small sliver in the high page rank bar, as well as a sliver in
the page not ranked yet bar with the bulk in low. Firefox shows results
in neither high or not ranked. The site is
http://www.jcurranphotography.com. It's not that big of a deal, but
somewhat weird.
Miriam