why wont my digital radio tune in?

[auntypurple]

Hi,
I have got a Bush DAB radio thingy, about 12 months old. Never had any trouble with it untill now, it's refusing to tune into anything other that Radio Cornwall, saying signal error 0. I don't have the instruction book. It's not been moved or anything and I have tried taking out the ariel and putting back in, so why won't the bloomin thing work. I don't like Radio Cornwall lol