3.8 (and beyond) update now all dashboard pages blank - WordPress

Hi - I have a problem with my word press website
everything was fine until i recently updated from 3.7
now when i go to try to edit any existing pages they show up as blank in the word press editor even though there is content on that page

I have attached 2 screenshots - one is how it looks in the editor - blank
the other shows the content in view page

has anyone experienced the same thing? does anyone know how to fix?

here is a google on the problem --it appears many wordpress people experienced the same - perhaps this can clarify

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=4.3+upgrade+wordpress+and+now+all+my+pages+are+blank

Go to the plugins page. Disable everything. Reenable each plugin one by one and test each time to see which plugin is the issue