So he we go, upgraded to 2.6.2
And it all fell to bits, could not login, but did not get the wrong password error.
cleared all the cookies, and tried different browser , same deal !!!!
hmmm, Rolled back to 2.6.1 same deal !!!!
So this is getting drastic
Copied the setting file somewhere safe, nuke the whole lot ( except themes) and re upload
It worked, cool, put some plugins back, wp-gravatar and spam Karma 2
It blew up again , now getting annoyed
removed plugings, now works, login to admin page and got to plugins section, and disable all plugins,
re install and activate, WP-Gravatar, wp-mobile, Spam Karma 2 and reCaptcha
All seem to work, will leave it alone for a while now
Mind you i have been thinking aboiut a clean up for a while now, the WYSIWYG editors have not been right for a while, odd mix of JS files i suspect