I have an AMD Phenom II X4 955 Processor, 3.2 Ghz on a 32 bit operating system. I have an HP S2031 monitor. The system is stable on my integrated graphics card, but the monitor shuts down when I add the Radeon HD 6790 graphics card. The monitor is refreshing at 60/min. Is this a BIOS problem? A monitor problem? I no longer have the Radeon card's driver on my machine, but it was fully updated, and the monitor still shut down.