My categories is hidden in product page..?

[Mikeey]

Hi!

My categories are hidden in product view, in left column there is only the title "Catgories".

In all other pages the category tree is visible and working.

If I deactivate dynamic (animated) view it works everywhere!

 

I may have made some changes, but don't know where to start looking..??

Any hints or sollutions?

 

Thanks!

 

Edit: Also the expand/shrink function of the cart doesn't work on product page.. Seems like something is inactivating javascript?

Tried with original product.tpl, header.tpl and the categories module catalog but get the same result...