So I'm kinda a n00b at paint.NET. But when I try to take a Lockscreen template and put a picture on it, then the template and the picture go to the top left corner, and then there is this checkerboard thing that's now part of the photo. So I think I might be pressing the wrong buttons, I go to layers. and import from file. Am I doing something wrong, or is there a way to fix this problem?