my locked widgets

havenT played with my widgets for few months but they were in working order. upgraded WP to 3.5 (not sure if this played a role) but at same time wanted to edit a widget which is showing a youtube video that is no longer available. Entire widgets page is locked although i do get a 4arrow curser when i try to select one… but nothing can be added to panels, deleted from panels, or edited. Re-boot, no success. using firefox.

site: http://www.holisticunderground.org