Evan, seriously, you are a computer guy...how do you do it? I need to make out those...fly patterns, yeah, full screen size, not pixelated and grainy. We can put a man on the moon and we can't make an avatar bigger?
Ed, no. It requires an image be 180 by 80 pixels or smaller. While the gallery allows the upload of a large image and then creates smaller sized images, including a thumbnail, the forums avatar utility does not. That means what you see is the largest image available. Besides, it's function is for identity, not as a gallery link.