I've got a Powerbook hooked up to a Dell 1901FP display. The max resolution for this display is 1280 x 1024 when I go into Preferences. However, when this same display is hooked up to a Windows machine, it goes much higher than that. Is there any way I can make it have a higher resolution through my Powebook? Also, is there some way to make the larger display my main display (with dock and menu bar) rather than having it remain on the laptop?