Suddenly after re-installing version 3.3 I can't enter posts in Visual mode. The tab is greyed out and doesn't allow me to even choose it, so my content must be entered in the HTML tab. I have reinstalled automatically twice already. The first time I installed it everything seemed to be working fine. For some reason I reinstalled --I think because I'd forgotten I had-- and it's not working now. I cannot access any of the buttons that allow you to format text. They do not appear as toolbars at all because the Visual tab is not accessible and functional.
I must note that I have two WordPress.org sites and I just installed version 3.3 and the visual tab is fully functional, the toolbars are present and when I type and format in that tab it shows in HTML in the HTML tab. Not so with the other site where I am typing text directly into the HTML tab.
What could be the problem?