I have an iBook G4 with an ATI Radeon 9550 card. I recently purchased a 22 in monitor with native res 1680 x 1050. I thought that when I set it up, there was a 1680 x 1050 in the display prefs, but I moved my setup, and now this resolution does not show up in system prefs. Does anyone know how I can get the native res? Thanks.