Dan, My wife has been running a 17" Apple Studio Display on her dual 1GHz Quicksilver with 1.5 GB ram. I got her a 20" Apple Cinema Display from Affordable Computers in Ann Arbor, MI for - $279.00 (http:// www.affordablecomputers.com/pages/), They will ship. It has a DVI connector. It came with an Apple 65 watt Cinema Display Adapter (Model No. A1096), which provides a separate power source. I was trying to figure out how to connect it to the open VGA connector on her Quicksilver and was exploring adapters. Then I looked at the video connectors on my Dual 1 GHz MDD. It is the same card you have - (the System Profiler specs are listed below so you can verify it). It has ADC and DVI connectors. I swapped cards between the machines, and she is now happily using her "new" 20" Cinema as primary and the 17" Studio as secondary for about a month without any problems. Good luck. I'd be interested to know if you're able to work it out. ATI Radeon 9000 Pro: Chipset Model: ATY,RV250 Type: Display Bus: AGP Slot: SLOT-1 VRAM (Total): 64 MB Vendor: ATI (0x1002) Device ID: 0x4966 Revision ID: 0x0000 ROM Revision: 113-99702-123 Displays: Cinema Display: Display Type: LCD Resolution: 1680 x 1050 Depth: 32-bit Color Core Image: Not Supported Main Display: Yes Mirror: Off Online: Yes Quartz Extreme: Supported Rotation: Supported Apple Studio Display: Display Type: LCD Resolution: 1280 x 1024 Depth: 32-bit Color Core Image: Not Supported Mirror: Off Online: Yes Quartz Extreme: Supported Rotation: Supported Dan T On Jan 8, 2009, at 2:21 PM, Dan A. Currie wrote: > I am driving a G4 MDD DUAL 1.25 MHz / 2 GB RAM / 2 -120 GB and 1 - > 200 GB HD / NETSCAPE 9.0.0.6 / OS X 10.5 and am wanting to add a > second monitor. > System preferences say that I have an ATI Radeon 9000 Pro card on- > board. > I am currently using an Apple 17" CRT Flat Screen with ADC connection. > How do I add another monitor, preferably an Apple 17" - 20" LCD > Flat Screen? > > Thanks, Dan Currie