1.) upon updating a widget when i click "Save" button it will keep on loading.. (screen grab) http://screencast.com/t/fmDnDxytwz
2.) Same thing happen when I use quick update for a post. When i click "update" button it keeps on loading. http://screencast.com/t/tgcmR7BBWf
3. lastly when im going to edit the permalink of a post. It will not save.
1. upgrade wordpress/replace wp-includes, wp-admin folder with official new wordpress version.
2. deactivate plugins.
3. add define( 'CONCATENATE_SCRIPTS', false ); in wp-config.
Any idea guys... Thanks.