Drupal 5.6 bug affects prevents saving of HTML filter settings
26th Jan 2008
Mike Dixon
Senior Mind
Hey, you seem to look at this article a lot! Why not Bookmark this article so you can find it easily in the future?
Just flagging this as a bit of an issue - it appears there is fairly serious bug in the version of the filter module provided in Drupal 5.6 which prevents you from saving changes to the allowed HTML tags
A patch is available on drupal.org but it's quite well hidden! Post number 7 in this thread contains a working patch http://drupal.org/node/208700
An alternative solution is to download the 5.x HEAD http://drupal.org/drupal-5.x-dev) and take the version of the filter module from there
UPDATE This has now been fixed with the release of Drupal 5.7