Just to eliminate the obvious possibilities, you're sure you've gone into the user panel > edit avatar, checked "Use an Uploaded Custom Avatar" and put in the URL of the new one, and clicked "Save Changes"?
Hmm, did you delete your old avatar before you uploaded it on the details page, like it says to do in the instructions there?
Yeah, I did. I actually had no avatar URL in my profile for a few seconds. I mean, I changed it like I always had without problems, that's what stumped me.
Posts
The first is here: http://forums.penny-arcade.com/profile.php?do=editprofile
Scroll down to 'additional infomration' and you'll find it under 'avatar URL'
The second is here: http://forums.penny-arcade.com/profile.php?do=editavatar
Make sure the one of them is cleared, and the other is set to the avatar you want to use.
Yeah, I did. I actually had no avatar URL in my profile for a few seconds. I mean, I changed it like I always had without problems, that's what stumped me.