I'm hoping someone can help. I just purchased a 30-inch Cinema display for my PowerPC (Dual 2.5). I upgraded to an ATI Radeon 800XT graphics card. After some trouble on start-up--which I remedied by deleting the old display drivers, I have another problem. The photos in my screen saver folder take a long time to load when in screensaver mode (about 30-40 seconds where the photo seems to be "resolving") and the photos do not take the entire screem--there is a large white band running vertically down the right side (about 3 inches). All other applications seem to use the screen correctly. Any ideas?