I am using Joomla 1.5 RC 2 and CB 1.1
When a user uploads an image, an x mark comes up on IE and on Firefox it just says the username. Yet, on the commenting system(maxcomment) and the forum(fireboard) the avatar they've just uploaded shows. How can I fix this?

I did a clean installation of Joomla 1.5 RC3 and everything works fine. Yet, I can't use Joomla 1.5 RC3 because my articles give me '404' error. So that's why I'm sticking with RC2 for now. I really need someone to help me. I don't want to lose users because of this problem.

I did that and it still doesn't work. I did a clean installation of Joomla 1.5 RC2, turned SEF off, and it still didn't work. You can upload pictures, but it doesn't show up on the profile.