Yoast SEO still greyed out in admin section on all pages

Hi,

Thank you for the recent update to 1.4.

I did this – update to 1.4, cleared cache, optimised database tables.

Expected the greyed out SEO options on all pages to restored as they have not worked since the last but one version of yoast seo update.

Tried this – uninstalled all plugins and reinstalled one at a time – but still cannot get SEO options to appear on each page. The pages that were previously adjusted with Focus keyword, meta data etc are all still there, albeit no longer accessible to make any new changes.

Currently have the folowing plugins in conjunction with your SEO plugin.

Broken link checker
Cookie control
Fast secure contact
Google XML sitemap
JW player
NextGEN
Page tags
Shareaholic
Google libraries
W3 Total cache
WP slimstat
WP-Optimise

All plugins latest version, and all work OK as expected.

Tested the page view in Firefox, Explorer, Chrome and Safari(all latest versions) just in case it is a browser compatability issue for viewing. Cleared history and cookies on each review, but all show the same – no WordPress SEO section other than the name, and on the right handside the coloured dot indicator. WordPress SEO page-sitemap created and shows correct results when loaded from the admin control panel. All admin control panels seem to view and work fine, just not on any old or new page. The only other error is that the tag-sitemap shows 1970-01-01 as a title, again expanded site-map shows correct information inside.

Any suggestions appreciated, and if there is a download link to the past stable versions that did work, might work as a temporary solution.

Thanks in advance for any assistance.

http://wordpress.org/extend/plugins/wordpress-seo/