I got a message from the LAFCPUG in which they don't know it also. Apple is vague in this. Does someone know a person with a 30" Cinema monitor and does also FCP? The Apple message is: Uncompressed HD video editing is not supported if you are using one or more Apple 30" Cinema Displays with your Power Mac G5. Because of the power requirements of the Apple NVIDIA GeForce 6800 Ultra video card, the other PCI cards required for uncompressed HD video editing may not be accommodated. See also http://docs.info.apple.com/article.html?artnum=300303 Paul Moortgat