So I've had the bt signal assist box for a week now and it's just been constantly fast flashing green. All I think that is probably wrong with it is that it hasn't been registered against my account. I have spoken to bt about 10 times now on the phone and it's still not fixed, no one seems to know what to do and I just get passed to another department. BT Please can someone just check to see if its activated? Has anyone else had this issue?