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