Well, i just did that.
And, the power icon shows up on the main screen and the MP3 label icon in the top right shows up when playing the MP3 music but no other buttons show up.

I made sure that all icons were set.
I even went back and manually set every one of them again.

Note: I am selecting images from the skin subdirectory itself.

Should I select images in a directory external from the skin directory and let the program copy them back again?