hmmmm...ok, sometimes if I get confused when printing different things on each side, befOre I print the first side, I put a little arrow in pencil at the top of the sheet. This way I am CERTAIN I'm inserting it correctly. Try this on plain paper. Print your first side then print the second side on a separate sheet, then put them together and hold up to the light...does it look right then? If so, then you are probably putting the sheet in wrong.