Two small problems in css

[Mong]

First check this menu test page (in firefox)
http://www.nichewatch.com/menus/code.php

Now when i hover over "Stat" submenu is displayed.

1) I want there should be only outer border for submenu and there should be complete white background of submenu without separating orange color between submenu items.

2) When i hover over "Stat" and move mouse to submenu items; background color of "Stat" goes back to orange but i want to keep it white same as when mouse hovers it.

Thanks for your time and help

[Mong]

Ooops
DId it make sense ?