Columns don't show

I have the settings as on attached images (config and menu-item), but the articles on the home-page (product-overview) still show up underneath each other and not in 3 columns beside each other..

I'd like 3 products on 1 row. It displayed good in joomla 2.5, now I changed to 3.0 and don't get it to work.

Thanks.

Hi,

Can you give me a link to the page it will maybe help me to understand the problem ?

Thanks but I transfered back to joomla 2.5, that's ok for me now. Problem solved.