The current deamon is tcsd.v2. The older deamon (v0) is still 
required during pointing runs, because .v2 has problem with
downloading the pointing coefficients to the TCS.

1. login into stefan and become root 

   % ssh stefan
   % su root

2. kill the current tcsd:

   # ps -ef | grep tcsd    <= get PID of tcsd
   # kill -9 PID           <= kill the tcsd

3. Start the old deamon

   % /usr/local/tcsd.v0/tcsd  &

   Note: you may get a ' Address already in use' error if there are open
   socket related to the tcsd port. Just wait until any old sockets are cleared.
   You can see if any are lingering sockets using this command:
     # netstat -l | grep 30010 
     stefan.30010         bigdog.64146          8760      0 24820      0 TIME_WAIT
     stefan.30010         guidedog.52165        8760      0 24820      0 TIME_WAIT

4. To return to the tcsd.v2:

   4.1 kill the tcsd (similar to step 2)

   4.2 start the old deamon:

      # /etc/init.d/tcsd start