I'm testing the menu around with tooltips for a client of my company (we will be buying it as soon as the website is ended), and I've had a problem with the tooltips.
The menu structure is:
Main menu (tooltips onmouseover)
Submenu1
Submenu2
...
SubmenuN
No tooltips should be shown on sub-menus
Well, when I first time step from main menu to a submenu, tooltips disappear (as expected) and appear again (don't know why) until i step to another option in the submenu. I don't know if I have expressed correctly, so I'm attaching an image.

So you can see what happens when Submenu1 displays Submenu1.1. The problem is why the tooltips appear again on submenus (just first time, as I said before).
Thanks in advance.