Arrgghhh again

Now I am getting really bugged. I ate just over 1000 calories yesterday and the scale has not budged. I am disappointed. I am going to try to eat and do exactly the same as the first day when I had the 1 pound loss. I read an article yesterday which said exercise is not key to losing weight and that is the more important aspect. I tend to think it would be a combo of the two which will work best. I struggle on.