I have a Sony DSC-W7 camera which we have extensively used. As of yesterday, we pushed the zoom controls and the lenses started its refocusing before it froze. The camera indicated to turn the power off and on to re-intialize, but we have had no luck. Tried different batteries and connecting it to the computer, but with no success. Has anyone else had a similar problem with the lense not moving and not letting pictures be taken?