Bug#515527: News after fresh install

Hello, First I changed my second nVidia from 6200 to 7300 (PCI-E Slot #2) so now I have an 6800 GS on slot 1 and an 7300 GT on Slot 2. There is no SLI bridge installed. Both cards has fitted only an screen on the DVI port. The VGA is not connected. With my old lenny installation the dual screen

Bug#515527: Problem still exists

I have the same problem still with an 6800 GS on PCI-E slot 1 and an 6600 LE on PCI-E Slot 2. If I have no xorg.conf installed single display is working. If I use the X -configure and than test these new created file with X -conf /root/xorg.conf.save the screen on 6800 GS is going black.