Avatar Help Please

[Mjazk26]

I could use some help if anyone has an aswer. I have been trying to upload an avatar and although I changed the pixels to 80 X 80 I keep getting an error that the file is over 8KB I don't see an option anywhere to change the size of the file. I tried several pics and they all do the same. I have never had this problem on any other forums so I don't get it??