I have a M5A97 motherboard that I flashed with the latest BIOS ROM (http://www.asus.com/Motherboards/AMD_AM3Plus/M5A97/#download). Everything went smoothly, and it asked me to restart the computer to finalize the update. After this, the screen went black. I let it simmer for about 10 minutes, and it stayed the same. I powered down the computer, then turned it back on, hoping it would solve the problem. The monitor no longer receives a signal from the computer. I've tried clearing the CMOS and removing the CMOS battery, then replacing it, to no avail. I really need help.