Starview 3 'The Box Super' not working?

Hi

My starview 3 box has suddenly stopped working. We have 2 in the house and both are only displaying free to air channels. They have been fine now for at least 6 months but have just stopped working. Any help on how to rectify this problem would be a great help, however I am a complete dunce when it comes to these boxes so please explain right from step one what I need to do.

At present the channels I can't access just say data is being updated the percentage rises to 100% however it just flicks back to the channel and starts the process again. I have reset to factory settings and tried scanning on network TW but every scan fails and at the end it says 0 channels found, I then tried network NTL where the scan works and 454 channels are found but not all the channels can be accessed. I am not sure what network to select as I cannot remember setting the box up, however I believe when the box was working it was on the networtk TW. Under System Information the following info is displayed:

THE BOX Super
API ver: 6.00e_E
Boot Ver: 8.0
4. Feb. 2008

I have tried to provide as much info as possible so any help or explanations would be greatly appreciated.

Thanks.