My Monitor has recently started to "black out" . The display will go completely black for about a second and then come back. I have a Samsung 204b monitor set at the native resolution 1600x1200. Generally it does this when running 3d application (games), sometimes up to 3 or 4 times in a row. It will do it occasionally on the desktop when I'm just surfing the net. I updated the Video Card drivers and monitor drivers to the latest versions. Next I tried was replacing the monitor and cable . I had a Single channel DVI-D and replaced it with a Dual Channel DVI-E cable. I have 2 Samsung 204b monitors and it does it on both of them. The only other thing I can think of is the GPU, it is generally 65c idle and 85c when running a program like Battlefield 2142. Does this seem too hot, it has always run at these temps and never had this problem in the past. Nvidia Control Panel only display one temperature level, I assume its the temp of the Primary Card in the SLI configuration. 85c is still in the green levels, but its getting close to the Yellow mark. The default Shutdown Threshold is 125c The Video card is Dual Sparkle Nvidia GeForce 7600GS 512MB cards. They have Giant heat sinks on them but no fans. Does this sound like a problem from the video cards getting too hot? The CPU is usually 45c under load , but it is liquid cooled.