Blank 'Pages' within Admin after upgrade

Hi, I have recently updated wordpress from 3.2.1 to 3.8 using the auto instal. Most of the site ‘pages’ appear blank (i.e no text present in main text box)- however the pages are correctly populated on the live site.

I have tried:
Switching to code view just to check
ctrl-a – the text isn’t white
updating the theme (starkers)
switching themes
disabling plugins
manually downloading/uploading all of the core wordpress files

If I add new text (or copy from the live page and insert) it saves it all fine.

Just wondering if there is anything else I can try before manually copying it all over!

Oh and this is also the same for the custom posts.

Thanks…