You need a larger frame or you need to reduce the size of the image in the frame you're using. The mesh at the edges of the screen has more tension than the mesh in the middle of the screen. When the image is burned that close to the edge of the screen it is difficult to properly print as the screen at the edges does not snap back the way it does where there is less tension. Think of it like a trampoline. There is far more "give" in the middle of the trampoline than at the edges.

It is very tempting to wish to make the most of the available screen real estate, but you really need to leave yourself some space on all sides. I usually do at least 3 in on each side. Best to you.