I have just built a pc using a intel D945Gpm motherboard and a Sapphire ATI Radeon X550 (PCI Express) Graphics Card. I have checked that the motherboard supports PCI Express. Upon boot up, Everything fired up, however the display on the monitor just read 'No Input Signal'. I have tried the monitor and cable i used with my laptop and it works. I took out the graphics card and just used the vga input on the motherboard and it still didn't work which leads me to believe that the problem lies with the motherboard. Does anyone have any idea how to rectify this as i've run out of ideas.