I can't view any of the photos in "My Pictures" through Photo Gallery.

I kept getting a message that Photo Gallery could not find a folder so I clicked remove and now "My Pictures" in no longer in the Photo Gallery.

When I go into "Manage Pictures Library" and try to add the My Pictures folder

if I try to add My Pictures it says it is already there, and if I try to add a subfolder it doesn't appear.

How can I find my photos again?

Thanks