Hi guys. I experience something very interesting with high end graphics cards from AMD Radeon 5xxx series up to 7970, and only with high end graphics cards. Radeon 5450 for ex. doesn't have this problem. I have the PC connected to a Panasonic Plasma 50VT20. This thing occurs only with the plasma. Same graphic card connected to a monitor or LED HDTV doesn't have this problem. In BIOS, during POST, loading operating system, UNTIL the driver is fully loaded, the image shows that in the picture below: Ideas suggestions?