Here are the instructions from Nancy and Cody.
went to my pictures (iphoto) and found one I liked that the subject was kind of square
photoshopped and brightened it a bit
then
I found the above chats and went to shrinkpictures.com
clicked make avatar
then in this exact order 1 2 3
1 click choose picture- brings up my photos and I find the one I brightened- click it
2 type" 90" in where it asks for size
3 click resize and wait
then choose the 1 of 3 you like best
click download below that one
save it to your desktop
open user control panel in the FDMB
select profile tab
select edit avatar
shrink the open window enough to expose the avatar on your desktop
drag it onto the box that says upload from your machine, wait till you see a plus sign appear(+), and drop that baby
click submit and hold your breath
Have to say that I tried and had my husband try and finally went to the tech forum where someone else did it for me.......