Tsk, tsk, a nice camera like the S230, and you've only used it once. The battery should be dead by now but can easily and cheaply be replaced from Amazon. And yes, your camera will soon be reborn, only this time use it and enjoy it.
The problem you describe sounds like 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, even after all these years. 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
Oh, and here's a good replacement battery:
http://www.amazon.com/Ultralast-UL-NB1LH-Equivalent-Digital-Battery/dp/B000CP10O8/ref=sr_1_3?ie=UTF8&s=electronics&qid=1211665829&sr=1-3
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