Just been playing around with plugins and somehow removed admin priv. from my admin account.
By way of a solution i ended up having to follow this: http://www.dnawebagency.com/how-to-add-an-admin-user-to-the-wordpress-database
Created a new db access user and signed in to PhpMyAdmin. My admin user account had been changed to subscriber!
Saved me from having to re-install and start over and may be useful to others.