I know you guys are trying to be helpful, but I'm pretty sure I still don't have an avatar, though it meets the requirements... even if it would look crappy I just wanna see it...
I have the same problem. I have tried with both Firefox and Internet explorer. I have a link so if you could brute force change the avatar or something that'd be great and I'd appreciate it.
I am trying to post a msg here but I always get an 403 forbidden error. The funny thing is that only with this msg I get this error. Already try to reply a topic, to create a new thread, even PM an administrador, but always get the error. The only way I found to post it is to attach the msg in a txt file!
I know its may look suspicious, but its tottally  true. If someone can help me. I don´t know wht the heck can be.
If you can't tell, its working now. Thanks all. If we can figure out why this happens, we can lock this thread and prevent more of them from being opened by having the answer on-hand.