Hello,
I upgraded from Nuke 6.0 to 6.5 using the darkblue theme. So far everythink seems alright. Only the recent-topics (last 5 forum-postings) block in the top-center of my page doesn't display anymore the author.

http://www.stabi.hs-bremerhaven.de/mondwurf/html/

And the other think: Some users are complaining that the receive the message invalid_session when they try to post inside the forum!

Would be nice, If someone could help.

Greetings
Mondi

Sorry for the miscommunication. The Block-Problem is solved. I used an old Block. After upgrading everythink works fine.

What remains is the invalid_session problem.

Well I have the same problem. I temporarly removed the code that cuases the error message. modules/Forums/posting.php. search for invali_session and use the line as a comment. So at least guys can post till seomone tells us how to fix it. that what I did at least.