That's pretty bad. I had one go back direct to Overclockers UK, I had a brand new unit on my doorstep 2 days later! I was even more impressed I didn't have to mess around explaining the problem to them either. It would still power on and take load, just 'pop' and spark now and again when turned on. It's always a risk with intermittent problems, but they came through good. Postage wasn't too bad either.