In my links in my drop down main menu lead to product categories. How do I control the title?

I have a marketpress multisite running the flexmarket theme. In my drop down menu “categories” I have links to the marketplace categories using their urls (because I need it to show the global products). This links work fine and bring up what they should. However the title on the page changes depending on which category that you choose. I would like to control those titles so they all have a matching format. How do I do this?