Hello to All, can anyone tell me how to use the DVI port of my video card connecting to LCD Monitor?i have these problem when i purchase a LCD Monitor(19" Viewsonic VX1940W) and try to connect to my PC. My video card is powercolor HD2600 Pro and it has 2 Dual Link DVI-I port. In the LCD Monitor package, it includes Single link DVI-D cable and a DSUB cable. When I try to use the DVI-D cable, it display "No Signal DSUB". I try to change the input signal in LCD MOnitor but after the screen went black in few seconds it returns to DSUB and display the message" No signal DSUB".Do I need a dual link DVI cable? Is the DVI-I in video card does not compatible to DVI-D in LCD MOnitor?i need anyone help about this..thank you in advance..