I have been using ztmonitor to monitor a channel on my TDM800 card, channel one. While monitoring the channels I notice on channel one there are signs of activity, however the channel is not use. Actually none of them are in use while this test is being done. Along with this one of the other channels also locks up. (This is what prompted me to used ztmonitor) Can this be an issue with the module or card itself? Thanks for any assistance.