Hey,

I know this is sorta addressed on phpBB.com, but I have a few clients that run phpBB, and they are having the problem addressed here: http://www.phpbb.com/kb/article.php?article_id=83

Now, does anyone know what causes this? I had the same problem on Ensim, and am just looking for the cause, and a possible solution? Does it have anything to do with Zend Optimizer, or do you have any other ideas?