session problem during manufacturer switch

[killerwhale65]

hello,

 

I have some items in my cart. Then i go to a certain category, and use the manufacturer switcher on the top of the page (not the manufacturers box on the left!). I go back to the cart and it's empty. I tried a lot of other things, but it seems to only happen when i switch manufacturer on top of a category list.

 

Any idea how this can be fixed or tested where the problem is?

 

Here is the bastard: http://www.artofmodelling.be/index.php?cPath=27

 

thanks!

 

Matt