I am creating a platform jumper game and am using the ParallaxScrollingBackground exactly as exemplified in the ChickenOutbreak Demo. Unfortunately, sometimes there is a visibile black line between the two backgrounds (see screenshot).
If I use the background from ChickenOutbreak, no black lines are visible. However, I carefully analysed my own graphics and am sure that they do not contain any black borders.
Can you give me any advice on what might cause this?