Can't customize Spirit theme in any browser

At first, I couldnt get the editor open in any browser but I found another post with a rule to add to htaccess for siteground which at least got the editor to open in chrome.
It still wont work in IE or Firefox (no admin bar, no edit tools at all)

In Chrome, I can see the editor, and I can drag objects on to the layout but when I click on things in the options menu, the menu jumps around so I have to scroll back to where I was and when I click OK, all the settings I change are reverted back to what they were before.

I have cleared cache, cookies, and even tried it on 3 different computers.