Got a Gigabyte x48-ds4 and a 9800 GX2 and the video card is not working properly. I get a prolonged beep when booting up and a black screen. I can take my old 8800 GTS and it works fine. Card is seated fine and has the proper power and I have tired both DVI ports on the back. I took a look in the bios but everything looks fine but there has to be a trick somewhere to make this card work. I am not sure of the bios revision but maybe that could be it. Any help appreciated. Thanks