Thanks, tried that with no luck, the guy wrote back with these suggestions....
1- if you already installed the motherboard in a case then take it out and test it on top of a cardboard box (or something like that) to make sure it's not grounding. Clear the CMOS jumper for 10 secs while you have the board outside the case and then set it back to normal position.
2- make sure you test with with different power supplies and memory sticks. If possible use good quality RAM (high density ram is more likely to have compatibility issues)
3- remember to plug the 12v AC adapter or you won't get any display.
4- Don't forget to test you other components with another motherboard to make sure it's the board that's not working instead of any of the other components.
If it's still doens't work you can send it back and we'll test it and replace it if necessary. Keep in mind that we test every single piece of hardware we receive and if it's found to be working you'll be responsible for s&h charges.
What does he mean by this? 3- remember to plug the 12v AC adapter or you won't get any display.