The only fix I know about is to have the box replaced.
You can either call Virgin on 150 from a Virgin phone, mobile or landline, or 0345 454 1111 from any other phone to report a fault, or wait here for one of the forum team to pick this up which might be 2 to 3 day's.
When phoning Choose the option to report a fault, then ignore all the options and then you should be placed into a queue to speak to someone.
