HI
I get the same problem when the image size is not the same as the original one. I did my image through coral draw and messed around with the size a few times and when i got the correct size it started to show.

I think that the image that you are trying to place is too big. One thing that i must mention is that i copied the image of the default logo and then pasted it in coral draw. I customised it and left the size of it as it was but it stil didnt work. then i realized that the zoom setting that i had on coral was affecting it. I dont know any other way to sort the image size out so it took a little playing around but i got there in the end.

Give it a go and see if it works for you