Resizing an image with stretchableImageWithLeftCapWidth

Question

I\'m trying to resize an image using stretchableImageWithLeftCapWidth: it works on the simulator, but on the device, vertical green bars appears.

I\'ve tried to use

Answer 1

I tried to disable PNG compression like Nate proposed, but this wouldn't work for me (iOS 3.1.3). I then tried using TIFF images instead of PNG, which works.