You need a certain number of posts (10 or 15, I don't remember exactly) to be able to use an avatar.
No wonder I couldn't change my avatar,
maybe it should be listed somewhere so newbies like me doesn't spam the forum with posts like this.

Anyway thanks for the help,
I guess I'll have to get to it without spamming to much.

Edit: 5 posts seems to be the magic number.
