I need help to setup my friend's 24" 2.16 iMac to her new cintiq 20wsx. The problem we're having is that the maximum resolution we can get on the cintiq is only 1280x1024, yet the manual says it should be 1680x1050. The result is that the image on the cintiq is all stretched and fuzzy. I installed it and tried using my white macbook and the cintiq worked natively at 1680x1050, so no problems there. So where's the problem and what am I missing?