Links are diesplayed without rights

Hello,

We have installed the NW04 Portal 6.0.12.0.0 and KM 6.0.12.3.0

If I create a link to a document or an folder. I set permissions only for the administrator, but all other Users, who has no rights can see this link.

Can someone help me to solve this Problem?

Thx

Christian

(Sorry for my english)