submenu height in chrome

I'm having a small problem with the submenus in chrome. The submenu height is not correct.



The div floatck is comming out shorter than the content.
In firefox I don't have that problem



The strange thing is that in chrome, if I open the second submenu that is "taller" and then again the first one, then it comes out ok.
How is the height calculated each time?

For the time being I forced the height with some css but it's not the best solution as the content of the submenus might change in the future.

Hi
set in the effect option >> load type = "load" instead of "domready"
CEd