I'm honing in on the purchase of a powerbook. One area that has me a bit confused is the screen resolution of the 15" models. I can see two models that look identical in specs (apart from one having 128Mb of VRAM and the other 64. both are 9700 cards) Anyway one ad says it is 1280x854 widescreen and the other says it is 1440x960 widescreen. I can see these are the same proportions and maybe the 1280x854 can be set at 1440x960. The 1440 one is about 6 months old and the other one is about a year older so maybe some specs were changed. My question is, are these two different resolutions meant to be the native resolution on each machine respectively? Or do they both have the same native resolution and are just set up differently.