Hm, that's odd. I'm not really sure what to make of it. I tested your link on a different forum software and it worked fine. I've also sent in a quick request about this to the MyBB team. They seem to have no problems with their script.
For example, one of their admins uses this: http://www.mybbsecurity.net/avatar.php?d...1360268291
Even after adding the dateline into the equation, the above link still works in randomizing the avatar. Can you maybe copy/paste the script you're using to generate the avatars?
Also, make sure that /all/ the avatars that your script utilizes are 110x110 (or lower), including that "image not found" one. The auto-resize feature could break the script on these forums. We encountered a similar problem with animated avatars.
For example, one of their admins uses this: http://www.mybbsecurity.net/avatar.php?d...1360268291
Even after adding the dateline into the equation, the above link still works in randomizing the avatar. Can you maybe copy/paste the script you're using to generate the avatars?
Also, make sure that /all/ the avatars that your script utilizes are 110x110 (or lower), including that "image not found" one. The auto-resize feature could break the script on these forums. We encountered a similar problem with animated avatars.
