It sounds more like you have something set wrong.
Your camera has a Reset feature that resets the camera back to factory settings.
That should fix anything that was set inadvertently.
Get out the User Manual and look on page 81 through 82.
Paragraph titled "Resetting Settings to their Default Values".
If you don't have a User Manual - you can download one at
My powershot S2 IS has started to "white out" when set to auto and taking shots outdoors, the pics look like a snow storm, yet indoors with the flash on it seems to be ok. Have I inadvertantly messed up a setting somewhere, or is the end of my camera.