[Mediawiki-l] Problem: No more Edit-Funktion, Browser shows empty page. (mediawiki 1.15.1)

[Jens Vieler]

hi,

our mediawiki 1.15.1 has the following problem:

watching, navigating, searching,... everything works fine but whenever
we try to edit a page we run into dificulties since the last few days:
the browser stops after a while - showing an empty page. no edit-window,
no error-message, ...strange! :-(

FF leaves an empty page.
IE says: (the german version of) the website could not be shown.

i tried debugging:

- apache-log: nothing in error_log nor access_log
- LocalSettings.php: "$wgShowExceptionDetails = true;" - nothing shown.

i have to add, that the wiki is one of a wiki-family
(http://www.mediawiki.org/wiki/Manual:Wiki_family); the others are
working fine.

does anybody know how to find out what's going on there? any help is
appreciated.

kind regards
  jens