hi, I just acquired a 30 inch Apple Cinema HD Display, with a native resolution of 2560x1600. I have it connected to my MacBook Pro (mid 2010), but the highest resolution of the display is only that of my MBP, 1280x800. I purchased a DVI dual-link converter (this one), but it doesn't seem to work? Does anyone know how to fix this or have any idea what's going wrong? Thanks so much!