I'm wondering if you can replace the threads, or do I need an entirely new fixture? Can I do this myself, or do I need an electrician? I've got some photos that will hopefully give some idea (though, I took them with a flash in the pitch dark):



It's the one on the left (not that it matters). At first, I thought maybe the little key at the base had something to do with removing the offending fixture, but I think you loosen that to swivel the light. I don't even know where you get these fixtures, but I assume Lowe's would have them.










:D