I've got an ancient LCD with a DFP connector. After years of on and off searching, I finally found what purports to be a DVI-DM to DFP-F adapter (though the box was labeled SCSI... it's definitely not that though). In concert with a Belkin ADC-M to DVI-IF adapter I was planning to hook up said monitor (a Princeton DPP-560) to a Radeon 7500 in a QS G4. However, it doesn't work. I've eliminated everything I can think of - the monitor works fine when directly connected to a DFP port on an old ATi xClaim 3Dplus PCI card on a Sawtooth G4. The Radeon 7500 is working - it does VGA with no problem, and it worked hooking up a DVI monitor with just the Belkin adapter. I suppose it's possible that the DVI-DFP adapter is bad, but it's all one solid piece which appears undamaged. Has anyone else had any experience doing anything like what I'm trying to do?