Make SURE it is plugged in all the way. I thought mine was, and it wasn't. I had vertical bars that looked like looking out of a jail cell, and pink flashes when I moved the mouse. I carefully "adjusted" the pins, and pressed so hard the motherboard was bending, and it snapped in. All is well now. It can be VERY hard to plug in. Just be careful and don't bend any pins or break the socket.
Jeff