I have a 3 column layout for a new Miva Merchant store that I'm in the very earliest stages of developing. But in Firefox 9, my left and right sidebars are picking up a couple pixels of either margin or padding or border on all sides. If you look at the same page in Internet Explorer 8, the sidebars are not picking up that "extra" white space on the edges.
I've used Firebug in Firefox to try to diagnose the source, but I can't seem to find it.
I have filled the two sidebars with color just to make this easier to see. (I normally have a background image in the site-container that I have temporarily removed). You can see an example page at:
If anyone has any ideas, I would sure appreciate the input.