I have a Sony Viaio VGN-SZ61WN it is a hybrid laptop. It has 2 graphics card. There is a switch by the power button to use either of the 2 graphics cards. It has an intel and nvidia. The intel works fine but the Nvidia one doesn't. When I try to use the Nvidia one the screen has weird lines and letters. I would like to know if I could fix it my self. As well does the graphics card come out. I need this laptop.