Background Position in IE6

Hey,

I'm coding up a site and everything is going good, except for one background position in IE6. The background is in the sliding shelf of the site:

http://www.thejohnnyforeigner.co.uk/projects/robwiebe/

The background positions correctly in Opera and FireFox, but in IE6 it doesn't show correctly. To see it you have to click on "access shelf" on the left hand side of the site. Any thoughts?

BTW, I just noticed that on my computer the shelf has stopped working in Opera... it was working just fine before. Anyone else have this problem in Opera, and if so thoughts on fixing it?

I'm not able to access the site with IE right now but if nothing works there is always the option to use a conditional command:

<!--[if lte IE 6]>
<style type="text/css">
#navigationpanel {background-position: -10px 0;}
</style>
<![endif]-->


P.S.: That's a nice font you're using there. What is it?