Problems with menu…

Hi,

I’m creating a web with woo commerce too, but have some basic problems with the menu.
I have created menu partially with woocomerce categories and and also with some wordpress pages and have problems to choose in the menu the wordpress pages.

The WP pages are (in the Product category):
Products Overview
DC Catalog

and when I goes with mouse over it, I don’t have it white marked. When I goes more times over it, it will sometimes then be marked white and then I can push it and goes to this page.

Please can anybody help me, how to resolve it?

Web: http://www.grand-tech.eu/2/