Cannot duplicate files in finder

I recently ugraded to Lion, and am just realizing now that I cannot duplicate files (Command D) in the finder. The progress window shows the copy being made, but the duplicate file, which used to show up just under the original file as "file name copy" does not appear. When I do a spotlight search, the copied file is nowhere to be seen. Also tried doing an Option-drag-to-finder. That didn't work either. I was trying to make a copy of an image and then rename the new file to send to someone. I had to go through Preview, then Unlock the file and then save as another name. A ridiculously long process. Anyone have any ideas?