I have a hp photosmart R717. It is an old camera, but I love the quality of pictures it takes. Or used to take until it started displaying mostly green colors. Most pictures show a predominant green, the odd picture may be more normal. Used to be that just one or two pictures were green, but now it has gotten way worse. Is there something I need to reset or a part I need to replace? Or would it be best cost wide to get another camera?