photoshop questionzzzz

Hello crossies!

I am kind of noobish at these things but still..
Whenever I insert a layer and then a picture in the layer, it turns out to be smaller then it should be?
I am not seeing it smaller or something, but it really is.
Can somebody to anything to help me?

Thanks in advance!


problem solved: picture had some problems it was placed into layer of photoshop, then I screen captured it, re-saved it and then it worked