Have a powershot that is probably 3 yrs old. When you go to take pictures the screen blacks out. The camera does have a huge amount of photos stored so I am not sure if this could be the cause or not. I'm not sure if I should just junk the thing and buy a new one or if I should have it looked at? Not even sure where I would go for work?? Any advise would be greatly appreciated. I am not a camera junky and don't know where to turn.