Light is on but nobody home. I changed the sound cards to different PCI slots but it still doesn't recognize the sound card. Every time I put the driver in it says the sound card is not in. The light for the sound card is on. I am lost with this; I have a 1000 watt silent pro supply - mother board is cross hair V. I have one gigabyte ATI 6970. Hardrive is OCZ Revo Hybrid. That is connected in one of the PCIE connections. Corsair 1600 Ram. As far as I am concerned, I am going to reconnect my sound blaster titanium. Please do not ask me to refresh my OS Win 7. I think that the driver and program does not meet with my standard and I believe the sound blaster program is far superior. It seems that I have to RMA this product.