Hello Thank you so much for your help.

-For Pagination: You say the site works normally. Now i found the issue. The problem is only with Firefox. All other browsers works normally.

But in Firefox i get no page buttons to switch on the next site, altough there are many articles on this category.

I use Firefox 37.0.2

For Example on Megamenu: PC & Zubehör => PC-Systeme => Thin Clients

There are 37 articles, but on my site only 12 articles listed and have no button to the next page.

http://psdemo.computer4u.at/68-thin-clients

Please can you check this with Firefox.

Thank you.

Best regards,
Gerhard