CSS positioning problem

Hey people,

I'm coding my first tableless layout and have run into a few problems. I've looked forever at the code hoping to fix this, but can't seem to find what's wrong.

http://www.ipie.net/forsale/movie/coded/

The problem lies in the menu. Different problems in IE and FF.

IE: Displays almost perfectly except for the gap between the top and bottom menu sections.

FF: The rounded corner for the left is in the center. When you click the 'new release', 'movies', or 'help' links, the text shows too far up, and is aligned to the right instead of the left. The right roundedcorner also moves to below the menu.

If anybody could help me with this, it would be great.

Thanks, Nick