I've been banging my head against the wall with a problem. I've got an ImageReady HTML layout I had to put into a Yahoo Store, and everything was fine in Internet Explorer, but in Firefox, the layout was broken. Images were shifted up and down, left and right. I knew the new Yahoo Store Editor (version 3.0) now forces all the pages to be in Standards mode , so I had a feeling it had to do with that. Once I was reasonably sure that it wasn't some dumb mistake in the HTML, I started searching for some info on standard doctype, images, tables, and mozilla, and sure enough, I found it here . Sure, tables and images are not supposed to be used for layout anymore, but it is still a lot easier in many cases to splice a few pieces of an image together using tables to come up with a specific look. What I didn't know until now was the new standards actually broke the old habits... Not too great if you ask me, I always think that if something is updated it should always support w