It looks like there are a few problems with overly-large avatars here. It's a loophole in phpBB's avatar system that it doesn't measure the size of pictures linked from off-site. This causes a bit of a problem, since disabling direct-link avatars leaves only the gallery to choose from.

 

Just letting you know.

umm, sounds like a php bug to me... I know someone who owns another php board, and they have no problems setting up the avatar system gallery, or offsite avatars..

Ask Matalina about this on the Help forum.