I don't want to be offensive or anything, but you might have accidentally uploaded the sample of that image from istockphoto. It still has the watermark in it.
Why would I be offended? This is a sample picture, and I'm fully aware of the watermark. the illustration is there to bring come color. IStockPhoto has ful right to say its from there. I user their site daily.
Roy.
God bless u. your info fixed my problem. i have a medical school exam next week, right now i am the happiest guy coz i would be able to navigate through my powerpoint notes. god bless u!