Well... it had been alright as far as I know for about a fortnight (since NTL sent the hits down). I was flicking channels then and it was glitchy on one of the channels (forget which one) so I checked the log again and to my dismay, another Post-RS error

However, it was this morning at 05:20! The error was:
15/08/05 05:20:48 302 Post-RS error 29 522750
I also noticed a new error too... although this one error filled the rest of the log screen as it was listed 5 times but all on the same date and time. This line said:
14/08/05 05:13:31 547 Kal Queue Full
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Now, I'm at the point of wondering why at around 5am for both errors as nobody is awake at this time (other than the hamster - rattling around in the cage trying to wake everyone up

) so the TV is not actually in use at the time.
I'm on an early shift in work tomorrow so I'll be calling them when I get home, but I was wondering if anyone could explain what a "Kal Queue" is and is it a big problem when it gets full?