Known issues with Release 2.1:

    * The strobe delay and timewalk scans occasionally fail to work. We believe
      that this is probably an issue in the DSP code.
    * The NMASK scan occasionally gives small errors, which are not reproducible.
      They manifest themselves as an apparent shift of one channel to the right
      in the histogram contents of one row. This appears to be a fault in
      the histogramming.
    * The strobe delay scans (when they work!) do not have 100% occupancy over
      the whole flattop region. It appears that entries in the histograms might
      be missing. The effect increases with channel number.
    * The Archival Service is still that distributed with 2.01, rather than
      the improved version which was planned.

John Hill and Matt Palmer, 16 December 2003