Our camera was dropped this morning--now it reads Lens Error

The camera, in its soft Lowepro case fell a metre or so onto a wooden floor. The screen reads "! Lens Error", although sometimes a gentle tap will cause it to display an out-of-focus scene of what the lens sees, with the error message overlaid. Sometimes I can get it to go into memory mode and display the pictures in memory. I can still download images to my computer, but otherwise I can't clear the errror. Any ideas?
Thanks!
Andrew in Quebec, Canada