I recently bought a D40. The owner told me the flash didn't work. Looked it up and it's a very easy fix: http://vimeo.com/3141400
Sure enough, my switch looks like the one in the video. I looped the metal back over the post as shown and put the cover back on. Now, my flash is stuck down and will not come up. Before the fix, the flash would come up but not fire. I have an external flash but would like to fix the built-in unit if possible. Any ideas? I'm sure someone has had this issue before, the D40 flash issue seems to be very common.