Hi, I use an Intel white iMac 2.0gHz as my primary computer. So far, it has given me no trouble. However, lately I woke the computer to discover a yellow line of dead pixels all the way to the right of the screen. It was discouraging but since the line was out of the way, it wasn't a great deal. However again, later today, I woke the display to find another line running down the middle of the computer. Oh gosh! Anyone know what is going on? Is it the display or the graphics card? Any help will be appreciated. Thanks.