I wanted to thank Jim Robertson and others who responded to my question about the Apple 20" cinema display and the G4 450. After talking to numerous people I'm under the impression that the problem is not only the 16MB of video ram not being enough, but also the fact that my machine is an AGP x2 vs. x4.My upgrade paths were pretty limited. After searching for a reasonably priced and sized CRT (basically unobtainium) I finally ended up going with a Sony 19" LCD (SDM-HS95P) which so far seems to work fine. I still have yet to calibrate it, but I like it so far and it works fine off the DVI-D port on the Rage card. Thanks again everyone. Jill