Subject:   -74- Why can't I log into Pandora in IRIX 4.0.1?
Date: 07 May 1993 00:00:01 EST

  The problem is caused by an incorrect shutdown.  When you log out,
  xdm runs /usr/sbin/gamma and writes the current value to
  /etc/config/system.glGammaVal.  IRIX buffers this data in main memory
  in the buffer cache.  If the system is powered off right after
  logout, the data is not written to the file.

  a) Login to your system as root, either via the network or
     by taking the machine down to single-user mode.

  b) enter these commands at the # prompt:

     # cd /etc/config
     # cat system.glGammaVal

  If the cat command returns a value of 1.7000, contact your technical
  support provider for additional troubleshooting.  If the command
  returns nothing (empty file) or "0", it means the problem can be
  fixed by entering the following command:

    # /bin/rm system.glGammaVal
    # /bin/echo "1.7" > system.glGammaVal

  Check your work:

    # cat system.glGammaVal

  The command above should now return 1.7.

  Your login should now be successful. If you edited the file while
  Pandora was running, you'll find the first login attempt will fail,
  but any later attempts will be successful. After the first login
  attempt, Pandora will read in the correct gamma value.