So today i got my new 6850 and tried to upgrade from my crossfired AMD 4650s to AMD 6850, followed the steps to install it and switched on my computer, i see the fan of the graphics card spinning but i get no display to my monitor. Please could someone help to fix this problem. i checked it the cpu is compatible with the new card and it is. i really don't know what the problem is its my first time installing a new card. Help would be very much appreciated. Thanks in advance.