my angel lcd keeps turning itself off it doesn't seem to do it if i leave it alone but if i'm plying a game it just turns off and i have to wait a while before i can turn it on again, it shows no fault when this happens. please help someone. it did go back to wdp for this fault and i tought it was sorted but it is my spare and i haven't used it for a while.so i thought i would use it for a training day and it started again.