Problems after upgrading

I’ve just upgraded to WP 3.5 from 3.4.2 and have the following issues:
-When editing a post, the visual tab doesn’t go anywhere, it’s there, I can click it, but it doesn’t load any changes.

-I can click “Add Media”, it’ll pop the media manager can upload a file, it’ll show up correctly, but when I click “Insert Into Post” nothing happens, but it returns me to the line in the post where I was editing, but no code.

-If I click “Media” and enter the media manager, and then click “View”, it’ll launch a page but the image won’t be there. If I copy target URL and paste it into the browser it’ll show up

-There’s no tool box at the top of the edit post area. Usually there’s a variety of tools (at least there was previously), was this lost in the new version or is this also broken from my installation?

Troubleshooting steps I’ve taken:
-Disable *all* plugins, didn’t show any improvement so I re-enabled them.
-Install and test Twenty Eleven or Twenty Twelve, also disabled plugins, no improvements.

At the moment I’m trying to reinstall from fresh download.