could also just be a memory problem which should resolve itself when you press the momok button. consult your manual about the memok feature or see:http://www.asus.com/Motherboards/Features/MemOK
This is most likely not the case. I have tried with the two RAM modules in several different slots, two at a time as well as one at a time. The RamOK! works fine, it reboots the computer several times, without doing much about the back screen however.