My canon S2IS takes great shots indoors but in natural light, as outdoors, the pics all look white - overexposed

Appears that the f stop on your camera is not working properly with the result that your outdoor shots are overexposed. Could be the f stop motor, the photo cell reading lite level, etc. Definitely a job for a pro.

Might cost a fortune to repair so might be advisable to cut losses and get new camera since parts and labor on those devices are costly.

this can be usually associated with your white balance in still camera mode.
Check to see your white balance is set correctly or just set it to auto. Also make sure the mode you are in it set. (ie. indoor, outdoor, auto, speed)

simply try with factery reset

You have the white balance set to the wrong setting. Go in and set it to auto white balance and see if your pics improve.

Make sure the ISO is set to the lowest number or even to "auto ISO".

Change the exposure/ISO through settings.
This is the cause for over exposed images.

CCD is going for Failure !

it starts like this first indoor ok and outdoor over exposed then
indoor pics also when u see them closely turns pink or green in shades then horizontal vert lines appear then completely blank

just check with casio if they have issued service advisory for the CCD failure problem as all others have issued they will do it free of charge

see link

http://www.imaging-resource.com/badccds.html

it is ur luck if camera still works in indoor pics then only take indoor pics but the pics are not crisp and clear they need to be there will be dis colored and scratchy but u can try see which are better i think pics without flash with adequate light will be better one's

i am here to help u in this if u like

This sounds like it might be a defective CCD imager. If so, Canon should fix this for you for free, including free shipping both ways. This is regardless of your camera's warranty status. Please check the following two links for more info:

http://camerarepair.blogspot.com/2007/11/canon-digital-cameras-showing-black.html

http://www.usa.canon.com/consumer/controller?act=PgComSmModDisplayAct&fcategoryid=225&modelid=13390&keycode=2112&id=29819

Applicable cameras include:
A40, A60, A70, A75, A80, A85, A95, A300, A310, S1 IS, S60, S200, S230, S330, S400, S410, S500, SD100, SD110, IXUS V2/300/400/430/500, IXY Digital 200a/300a/400/450/500

1. Adjust ISO or ASA 100
2. Adjust AWB Indoor florescent or Bulb while outdoor select sunny or foggy it depends of the place