Page 2 in the portfolio

Hey.

The portfolio filtering function is a bit wiered. This is the portfolio:

http://www.vican.se/wordpress/produkter/

It has a number of filters and when I click on for example “Belysning” it only shows 16 of 18 items. If I click “2″ or “Nästa” (Next) it includes a coulpe of the other filters as well as the next few items in the Belysning-category. Why is that?

One solution could be to increase the numer of items showing after filtering (best would be to show all of them on one page), if that’s the best way to solve it, how do I do that?

Thanks.