Problem(s) Encountered:

In the evening we lost pointing and restored it using the tilt sensors, but the  E/W sensor showed 0.00 with no change until we tapped the monitor, at which point it showed the correct value.

Solutions:

This may have been the source of a number of anomalous readings regarding the tilt sensors.  I verified this afternoon that tapping on the E/W tilt display did indeed change the readout, sometimes somewhat drastically.  I pulled the display out of the rack and checked connections and found the E/W connector to be somewhat loose.  I reseated it and installed the display back in the rack.  The readout remained constant when any further tapping was made.  It will be good to watch this, but I think we may have solved the issue with wandering tilt readouts.