I recently received a powermac g4 and an adc monitor. I upgraded the hard disk and ram, however I am looking to upgrade the graphics card in it to one that will support core image, probably a geforce 5200. However, people online say that the card will work in G4's, but you need to disable power going to the ADC monitor or else it won't work. I want to upgrade, but I still need to use my ADC Monitor.