product in Single category

[mariuskater]

Hi.
I've configured a "Single category" menu item, that show the main level of category.
I would like that the products are displayed in categories; all the products, in this moment are displayed in alphabetical order.

for example:

- category A
--- Product 1
--- Product 2
--- Product 3
- category B
--- Product 1
--- Product 2

how can i resolve it?
thanks


PS. I'm sorry for my incorrect english