I recently tried to add a second hauppauge hvr-1300 in my system, but when I run mediaportal setup I have "unable to create graph for this device" for analog part of each card, so I suppose mediaportal mixes up cards when having two IDENTICAL hvr-1300. I did a lot of try (change driver, change pci slot, etc) but I had no success: mediaportal works if I have only one hvr-1300 installed in my system. Someone may say something about?