check signal cable error message on my pc.wen i playing games the screen goes white and show check your signal cable,i check all cable ,reset video graphic card but nothing happen but wen i remove the graphic card and just simple open the pc is fine.i think i using a connector to cpu is a problem because my monitor is d-sub and have normal cord.so in my graphic card hdmi port i used a connector.is connector is a problem? cpu intel core 2 duo e 4600 @ 2.40ghz/2gb ram screen lg w1642s graphic card nvidia 220gt 1 gb can u plz help me....