I have a new MPC machine with a 19" lcd monitor. Like the title says, when I show a video there are horizontal lines that appear when things move quickly. When my "my pictures" screen saver kicks in and the picture pops up and moves across the screen you see the same line and brokeness on the edges. When pics are still they are clear as day. MPC replaced the monitor and upon installation it worked fine briefly. Two hours later I had same old problem. What could be causing this. I have hooked up another monitor to the computer and it worked fine. I do have speakers located sort of behind and to the side but I have disconnected power to them and had same probs. Interference? Any ideas or suggestions???