[pmwiki-users] login problem after Upgrade from 2.0x to 2.1.3

[Patrick Ogay]

I have a unexpected unpleasant and very weird problem:

Case:
(without config.php and farmnconfig.php, I also renamed 
main/blug.GroupAttributes, there isn't any  php-error neither)
If I try to edit, textarea doesn't show up. Probably I don't have 
authorisation, but no login-prompt shows up.
http://www.blug.ch/pmwiki-2.0b13/pmwiki.php/Blug/HomePage

Wasn't there an issue about php-authorisation? May be a module has to be 
activated.

I hope somebody can give me a hint, what the problem could be.

regards
Patrick Ogaay