Default Settings- Plz help

view story

http://androidforums.com – I posted this on another forum & got no response. Maybe someone here can assist? I can't for the life of me find the "manage defaults" option...I know I've seen it before... Issue...my stock gallery is giving me issues & keeps saying there is an error and closes. I downloaded quickpic and disabled my stock gallery. Now I can't preview pics from the camera. I tried clearing the defaults from app settings & expected the option to choose a new default to pop up & it never did. Is there a way to force choose a default viewer? Other ideas? (General)