I tried updating my avatar, the edited picture shows up in my "Edit Avatar" section, but my old avatar still remains in the forum.

Here is my old avatar picture:

Here is my new avatar I am trying to upload:

Clear your cache?

Yes you're right on the money

How do I do that? I am using FF 3.5

Does my old avatar still appear in your screen?

Your new avatar displays for me. Looks much better than the old one btw.

So, how do I clear my cache?

I have this issue with a few users' avatars who use the upload system, myself included. Sometimes using right click>Reload Image (Opera feature, clears only that image from the cache) works, sometimes clearing the whole cache does, sometimes I need to manually go in and wipe the cache myself from the file explorer. Yours is updated properly on my end though.

Try ctrl+F5.

It solved my problem, thanks for helping me.

Alternatively, using an offsite upload like www.tinypic.com is almost always a better idea. You don't run into this problem, and you don't get some of the quirks of the upload system like killing animation (and I believe transparency as well, though I've never tested that) on resizing.

Closing thread, not a bug.