I'm trying to use my Mii picture as an Avatar in the forum, but it keeps telling me that the picture is too big.

What should i do?

Resize it using paint.

Why would you even want to?

Hmmm, its telling you its too big? Wouldnt the logical conclusion be to "make it smaller?"

Yes, clearly the most obvious conclusion is to make it smaller. And quote a guy's argument in my class, "Anyone with a sufficient mental capacity should be able to answer the question". Everyone seriously loled at this...