Extend Desktop on GX280 SFF.
A ATI X1300 did not help. It has just the normal DVI connector. not the other thing.
A DVI to 2VGA did not do it.
A Google search shows that other people have the same issue.
The chip set inside the GX280 is already a dual chan graphics. But the output is not available.
It has to be a half high video card to fit the SFF desktop case.
But it is hard to find a half high with two outputs.

Any ideas?
(Yeah, get rid of the GX280. That works. But can I KEEP the 280?)
So what you're WANTING is to either get this card to work, or to find a "half high" card that has the dual connections? By "half high", do you mean Low Profile?RIGHT. I should have said low profile.
As far as I can tell, you never do this with a single DVI connector.
Nor can you with a single VGA port. (Not talking about a fancy EXTERNAL gadget that costs more that the card.) 
There seems to be a lot of confusion over this. Please give me a heads up. The only info I can find is a special card that has a 59 pin connector and a Y cable that does tow independent DVI ports.
For some reason dual can chips out there put on low profile cards with just one connector. Why oh why did they do that?
My guess is that I will have to buy yet another low profile card. Please tell me I am wrong.This card has dual monitor support with either 2 DVI's, 2 VGA's, or DVI and VGA. It comes with the same "Y" cable you specified. Its an older card though, and it might not be the best for performance. It shouldn't require much power though, so you should be good there. Not too sure if it supports the "Extended Desktop" you're wanting. I think it's the same card you're refering to in your last post.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814103011Thanks for the help. You work seems to confirm what I found. You you provided a clue. The link tells about the DMS-59. I found:
Quote

DMS-59 is a 59-pin electrical connector generally used for COMPUTER video cards. It provides two DVI outputs on a single connector. An adapter cable is needed for conversion from DMS-59 to DVI or VGA, and different types of adapter cables exist