  DCL SUPERSEDE Error? Mouse-less Workstation? 
 The Question is:
 
I have a VAXstation 4000 Model 90 that displays the following message on the
top of the screen:
 
% DCL-I-SUPERSEDE, PREVIOUS VALVE OF SACDA$DISK HAS BEEN SUPERSEDE.
 
also
 
can I use the VAX withouT Mouse, and where can we Buy a mouse for vax 4000
 model 90.
 
 The Answer is:
 
  As for your request for a replacement mouse, please contact Compaq
  Assisted Services, Compaq Services, your hardware support vendor,
  or a prefered third-party used-equipment vendor for pricing and
  availability.  As for operating a DECwindows system without a mouse
  connected or with a failed mouse, please see the OpenVMS FAQ for
  the details of the available "dead rodent" mode.
 
  As for the SUPERSEDE message, the OpenVMS Wizard will assume that
  this message is displayed by a login or sylogin or other DCL command
  procedure, a procedure which uses the DEFINE or ASSIGN command, and
  particularly a procedure which overwrites an existing logical name.
  If you wish to suppress this, use the DEFINE/NOLOG qualifier.
 
  As for your current OpenVMS VAX version, the OpenVMS Wizard strongly
  recommends an upgrade to V6.2, V7.2, or V7.3 -- both user- and
  privileged-mode code are typically expected to continue to operate
  after an OpenVMS VAX upgrade from OpenVMS VAX V6.0 and later releases.
 
 
  From HELP/MESSAGE:
 
 SUPERSEDE,  previous value of 'logical-name' has been superseded
 
  Facility:     CLI, Command Language Interpreter (DCL)
 
  Explanation:  The specified logical name was redefined.
 
  User Action:  None.
 
