Obviously I'm supposed to go to the Edit Avatar screen, which I do, but then the radio button won't change when I click it, and the reset screen button won't do anything, either. I've tried both buttons many times on different days and they never do anything. Am I permanently committed to never having an avatar because I checked that I didn't want one when I first joined?

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Aha. Thanks. So it's a money issue. I'll have to wait on that a little bit, then.