[Dan Zollman]

Hmm, this is a tricky one...

At this point, what I would do is start with the menu HTML on its own with no CSS, and start adding in the CSS one property at a time (leaving out the irrelevant ones like text-align).

My question is not why isn't the third-level menu where it should be, but why is it layered over the second-level menu in the first place.

You could also try to rewrite the CSS and use relative positioning instead of absolute positioning. Put "position: relative;" on each LI (no left or right). Then position the second and third ULs relative to the containing LI.

If that doesn't help, I'll try to come back to this tonight and spend some time looking at the CSS closely.