This is the second video card that ive bought to try and upgrade my Hp Media Center PC m7640n. When i put the card into the PcIE Slot and hook it up to my monitor i get no picture from it. The monitor says no vga signal, but when i got back to the onboard i get a picture. I Checked device manager and the ati graphics card wasnt there (it didnt even show standard vga compatible device. only the onboard nvidia 6150 le). I tried disabling the onbaord video and changing the diaplay adapter setting in my BIOS but its still not working. I have updated my bios as well. plz help.