Graphic card Display problem

Hello,

My Problem is that my graphic card is not giving display to monitor even though it is plugged in and the display is coming from integrated graphic card . Confusing thing is that when i open my P.C and remove my Graphic card AND PLUG IT again it starts giving display and everything works fine but as soon as i shut down my P.C the same problem starts again .

im using Windows 7 , my Graphic Cars is Gforce 9500 ( 1 GB )