I have a Asus laptop with (intel core i7, windows 7, ATI mobility radeon HD 5870 graphics, EAX advanced HD 4.0, energy star). Receantly I been watching videos using windows media. I insert a memory card with 8 hours worth of video. I dont have any problems watching the video, but when I start to slide the slider back and forth to jump to different scenes, my whole screen will go blank(whitish color) and none of they keys work. I have to do a hard reset for everything to go back to normal. But everytime I start to skip scenes this happens. Can this be my video card is going out? Thanks for your time.