Hi, can anyone help me with this please. I have the above DVR which is 3 years old. A 1 TBT WD hard disk is fitted. its has worked perfectly until the other day. No HDD light and no output to network or when tested via the VGA port there is no signal. Inside on the motherboard the power light is illuminated. When powered down and up again there is the sound of the hard disk starting up and attempting to seek then nothing. It cycles through this every few minutes but no signal output. I have tried shutdown and restart several times. Cheers James