I'm having the common "Visual Editor has no buttons" issue on 2.3.3. I've tried a few of the fixes mentioned in the forums but no luck so far. Many of the discussions point to gzip. When checking my gzip setting, I found that I could not change it. It's off. I can check the box and click Update, but when I return to the page, it's still off.
My server config shows that the server (Apache 2 + PHP 5) does support gzip.
Any idea what would prevent that setting from saving? Thanks.