I've had my rDNA for 7 days now and my screen froze 1 time and only once. It was after it was in my car at about 35 degrees for 10 hours. It reset right away after pulling the battery. I've had no other issues at all, temp control working great and it reads kanthal/nickel every time. I don't want to send it back for nothing but I also don't want to be stuck with a bad board. Is there some kind of sequence or test to see if it is indeed a bad board?