This coding worked fine for quite a while, then I took a hiatus, and suddenly it's broken. I haven't touched the code at all. It's like it just magically broke itself. : (
This is the profile in question. It's the scrollbars that I'm confused about.

first, give .tabbox dimensions. That should fix the inside. I'm not 100% sure what's breaking the.. other stuff
maybe add position:absolute; left:0px; top:0px; to .container
(and honestly, container and mainbox should be id's not class's; and )
that should give us a start as to what's exactly wrong...
