I have recently upgraded to 3.5 and I am unable to add images. When I click on either "Add Media" or "Set Featured Image" nothing happens and the popup does not appear.
I have turned off all of my plugins - nothing happens.
I have cleared my cache - nothing happens
I have cleared cache and tried in firefox and chrome - nothing happens.
I have tried adding the script (that I saw referenced in another post) define('CONCATENATE_SCRIPTS', false ); to wp-config file - nothing happens
I need this fixed asap. Any other suggestions?