Portoflio Selector Scrolls up

Hi guys,

I’ve installed Maskitto Light, and loaded your xml to have all the the categories of metadata, like portfolio.
I’ve added some posts to portfolio and added the complete portfolio to my home page.
I’ve created two categories, and added one post per category.
When i try to select the category i want to see in my front page, the selector don’t change to the right one, stays in “ALL” and the page does a little scroll up.

What’s wrong with that?