But those 256 colours are still 8 bits per RGB value. 16 bit colour has 5 bits per RGB value, and so the values will be quantised and you get this effect. Does anyone know how to get PSP or Photoshop to have 5 bits per colour, or a better converter? I suppose you could try reloading the screenshot after AGS has nessed it up a bit and using a smudge tool on the nasty edges.