I've had a SD400 for about a year and a half and have had no trouble out of it. I recently took it on a ski trip and now it has some issues. There is something in the lens that creates a "swoosh" effect on the pictures. You can see it when you look at the lcd screen or when you take pictures. Zooming in makes it more noticeable. I have cleaned the lens to no avail and imagine this is something wrong internally. I've attached a picture, any ideas?
Also, this picture is zoomed in and really highlights the problem, but still, I've got to do something!