My digital receiver's broken! PLease help!

My digital receiver stopped giving me sound on a couple of channels, so I’ve been trying to retune it all day. First up, I selected auto-tune from the menu, but the bar stops about a third of the way along, and then doesn’t continue, with no channels tuned in.

I then try manual tuning - but that’s a nightmare as well.

And no, because i’ve tried a few times and switched it off, there’s no channels at all! I have to have it working by tonight - I bet there’s some quality stuff of bbc4 for me to record.

Auto-tune is the way forward - but it’s not working! <cry>Please, someone tell me whats wrong!</cry>

P.S. - the receiver is a grundig GTC2000, if that helps. And its freeview, so I’ve no engineer to call and cry at!

You might get a better response at one of the Digital Spy forums - Digital Terrestrial TV or DTT Technical