Hi,
I get exactly the same problem. Since I have upgraded to 3.3.1, when I click on the Upload Image link nothing happens. I also can’t use the HTML view.
I have tried all that you suggest. I have also tried to use a fresh wp-content with nothing more than default inside, but I get the problem either. I’m using a french version of WP, so I also tried to move to the english version. But I get the same problem.
Do you have any idea of what I can try to resolve this problem?
