Occasional SDV channelno audio

Recently been seeing a problem where on some sdv channels, I don't get sound when I tune to the channel. Usually, flipping back and forth a couple times fixes it, sometimes not though. Called TW and they said my signals are pretty low (RDC is 29 in the tuning adapter menu) so they are rolling a truck tomorrow but I'm assuming the tech won't know much about cable cards/tuning adapters. Hopefully they can boost the signal and it'll work but I was wondering if anyone has seen this before.



Thanks,



Mike