Gefen DVI to MiniDisplayPort woes

I recently bought a Gefen DVI to mini display port converter for use with my new 27" iMac. I connected the DVI output from my Powermac G5 (ATI X800 set at 1920x1200) to the Gefen box and then connected the Gefen to the iMac mini display port. I pressed cmd-F2 and then.....
*********nothing*********
Just a black screen.
Has anyone else been able to get this to work?

Joel, perhaps you are taking my post at cross purpose to its intent. English is not my first language. I am aware of the purpose of the thread, I have been a part of it from the beginning. I understood your comment regarding Apple selling the converter as a genuine question. So I was pointing out that the converter has a purpose and that Apple was selling it for all the legacy Macs with DVI, mini-DVI and micro-DVI video outports who wanted to use the new Apple LED Cinema Display that required mini-DisplayPort input. It is just unfortunate that this is confusing the folks now looking to connect those same legacy Macs to this new iMac.
It is fine that you disagree that this is a repurpose of the product, but this iMac did not exist when Apple began selling this converter specifically for the Apple Cinema display, which is the only Apple product that Apple mentions in its copy on the website where they sell this converter.
If you browse the Apple Store website and check out the product reviews of many of the adapters and converters for Macs, you will see that there are comments from many folks who have misunderstood the real purpose of the different products and are frustrated and angry because the product did not function as they thought it would.
Hopefully Apple will settle down with the DisplayPort technology and folks will not need to go in search of so many different adapters and converters. I also assist folks with Mac minis. This new iMac has confused a lot of them as they have looked for temporary displays for minis set up as entertainment centers. The new Early & Late '09 Mac minis have two video ports; a mini-DVI port and a mini-DisplayPort, but they come with only a mini-DVI to DVI (D) adapter in the box. So folks thought that they needed to then find a DVI (D) to mini-DisplayPort adapter to use with the one in the box to connect the new minis to a new 27" iMac, when the simple answer is just a simple mini-DisplayPort to mini-DisplayPort cable!
Dah•veed

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