I push "Recover" and nothing happens?

Recuva found my files, said they were in excellent shape, check them off and either right click and tell it to recover or push the recover button, the location box pops up, I give it the folder, push OK and nothing happens. Nothing.

What am I doing wrong. I'm in desperate need of this file.

What does Recuva say, recovered 0 files, or 1, or 2 etc? Does it warn you that you are recovering to the same drive? Does it just end?