I had a strange problem while importing a new po file in drupal 4.6.4/5. Finally, I found the solution [3] : memory_limit should be higher than 8Mb. The module causing seems to be locale. As it is in drupal core, I think the "System requirements" page [1] should be updated, because the next line isnt really true in my eyes: "php memory of 8MB for a Drupal core install." I know there is another web page [2] telling sometimes drupal needs more PHP memory, but I fear the exception had become the rule. What do you think ? On one side, a 12Mb requirement may scare users, but on the other side, it would help users to avoid problems. Ch. [1] System requirements http://drupal.org/node/270 [2] My admin > modules page is blank http://drupal.org/node/31819 [3] Locale doesn't work for me http://drupal.org/node/12020#comment-18732