If you allow guest posting in your Forums, then you may want to add this little hack in order for your Guest/Anonymous user to have an assigned default avatar.
To make this work do the following.

open modules/Forums/viewtopic.php
Find this line

Code:

if ( $postrow[$i]['user_avatar_type'] && $poster_id != ANONYMOUS && $postrow[$i]['user_allowavatar'] )

change it to this

Code:

if ( $postrow[$i]['user_avatar_type'] && $postrow[$i]['user_allowavatar'] )

Now you need to assign an Avatar to the Anonymous user in the Database.
Go to your Database table _users.
I recommend using phpMyadmin
Browse the users and select the Anonymous. This is usually user_id number 1.
The user_avatar field needs to be changed to whatever.gif (your guest avatar image name) Make sure you upload this Guest Avatar to both the modules/Forums/images/avatars and modules/Forums/images/avatars/gallery folders just in case your pathing is screwy. :wink:

If it doesn't work up to this point then open viewtopic.php and comment out or remove the following lines:

Code:

if ( $poster_id == ANONYMOUS ) { $poster_avatar = '[img]'. $images['guest_avatar'] .'[/img]'; }

mikem