I guess a photo might help identify the problem. I take it the tube doesen't need demagnetising and everything is in good order?
Assuming that is all good I usually use an old cr@p game PCB test mode with colour bars to get the colour right and I usually do this by eye/random twiddling. However, if its a WG montior you should be able to get the instruction manaual for it that will tell you the 'correct' procedure.
karlcdoe2011-08-01 12:56:38