I've just upgraded to 3.3 from 3.2.1 on two different web sites. On each of these sites I've lost the visual editor. I do not see the tabs for "visual" and for "html". All I have is the html pane.
I have tried the sites on two different computers. I have cleared my cache. I've done a hard refresh. I've switched to the twentyeleven theme. I disabled all plugins. I've shutdown my satellite internet and restarted (you never know). None of these efforts seem to be working.
I suspect that this is not a WordPress issue, but I am stumped. Any suggestions would be very welcome!