When using this menu opiton:

How do I change the font of the subcategories so that they are different than the categories?

Why does the menu collpase when viewing the product?

If you are using the Draw Categories and Subcategories, you can add the following class to your custom.css file:

.sidecolumnitemtextsub a

Then just do whatever you want inside that css class. Those changes will take effect on the links for the subcategories only. Keep in mind you will probably want to override the hover, active, and visited links as well.

The menu collapses when you view the product because you are no longer looking at that main category. This is functioning the way it was designed.

Thanks for the info.

I wish the menu didn't collapse, that is bad UI design.