Indexhibit Support

Hi,

When I click on the title on an exhibit in my menu, a small scroll-bar appears down the menu. I don't understand why...
And the problem is the same if I change the weight of the menu.
You can look here:
paulinechaffard.net

Does anyone know how to change that?
Thank you very much,
Pauline

It´s ok for me in chrome and IE8, which browser(s) gives you the problem?

Firefox! 3.5.16...
With Safari it's ok.

I'm using Opera 11.01 and it looks fine!

Ok, thanks...