Firefox 3.5 shows space between header and rest of page

I've been building this store and viewing it on Safari and the previous version of Firefox, and everything was fine. Then, I update to Firefox 3.5, and there's an ugly space between the header logo and the rest of the page.

The page is http://chalkfarmhome.com/shop/index.php?main_page=index&cPath=1. All the pages in the store have that ugly space. Now, I know it's the headerwrapper that has it, because I've gotten rid of all padding and margins in the wrappers. This all looks fine in Safari and the previous version of Firefox, mind you.

Please help if you have any ideas!

The following thread may help you with this issue.

http://www.zen-cart.com/forum/showthread.php?t=134351

There also appears to be the word bye on the right hand side of the page near the top for some reason. I am also using Firefox version 2.0.0.20.

Yeah, the 'bye' is just a text placeholder to show the designer that there are sidebars on either side of the center wrapper.

Unfortunately, this is only an issue with Firefox 3.5, and that thread didn't do the trick. Thanks, though.

Ok, I've figured it out. I was scaling the header image to be smaller than it actually was and, for some bizarre reason, Firefox 3.5 makes a 1px space under it. Hopefully this is fixed in their next patch (which better come soon, because so far I'm absolutely HATING 3.5).