You can now upload an avatar straight from your computer.
File size can't be above 120k. Physical dimensions don't matter as the system will automatically re-size it to fit the forum.
Just click on "Profile", located at the top of the forum, and then click on "Forum Profile" located under the "Modify Profile" heading. Then click "Upload an avatar" and then choose the picture you want as an avatar from your computer. Once chosen, scroll down to the very bottom and click "Change profile" (located in the bottom right hand corner)
You can also, if you don't want to upload an avater, chose from the selection already available.
Again, just click on "Profile", located at the top of the forum, and then click on "Forum Profile" located under the "Modify Profile" heading. Then this time click the option "Choose avatar from gallery" and then pick one from the selection. Again, once chosen, scroll down to the very bottom and click change profile (located in the bottom right hand corner)