Links don't translate into messages

When a user receives invites and such, from other users, the links to things like User Profile, or Manage Connections come through as HTML code. No link.

How do I fix that?
See attached image.
JL

Enable BBcodes in UddeIM backend.

That did it. Thanks.

Correction: link works now (only at groupjive invitations) But when you press the link an error comes 404 category not found You may not be able to visit this page because of: ...

what causes this problem? is it a pm problem, a groupjive problem? I haven't found yet any relative awnser

Please give an example for such a link. I is most likely a Groupjive problem.

The link the writer of the topic talks about. Even when it fixed by the suggestion above, when you press it, goes to an error page that say 404-Error Category not found. (I don't paste here the original message because it is in greek)
When someone gets an invitation from groupjive, even with pm or with e-mail, the same problem appears.