I have tried creating categories for the first time. Although all other pages on the site work as expected, when I click on the category name on a page to go to the category index, I get:

Editing Category:WP1 You've followed a link to a page that doesn't exist yet. To create the page, start typing in the box below (see the help page for more info). If you are here by mistake, just click your browser's back button.

Sorry! We could not process your edit due to a loss of session data. Because this wiki has raw HTML enabled, the preview is hidden as a precaution against JavaScript attacks.

If this is a legitimate edit attempt, please try again. If it still doesn't work, try logging out and logging back in.

Articles in category "WP1" There are 3 articles in this category.

D Draft Online Questionnaire P Project:WP workspace Project:WP1 workspace

I¹ve tried purging the cache, logging in and out, restarting the browser and so on, and also creating another category, which gives the same behaviour. There is nothing helpful in a the MediaWiki-l archives. I¹m using

MediaWiki: 1.9.3 PHP: 5.2.1 (apache) MySQL: 4.1.22-log

Any suggestions about what to do?

Thanks

Nigel

________________________________________________________________ Professor Nigel Gilbert, ScD, FREng, AcSS, Professor of Sociology, University of Surrey, Guildford GU2 7XH, UK. +44 (0)1483 689173