Is anyone else having the following problem?

  In our environment we tend to establish a lot of DS sessions.  While
  using the ':' to return to the parent session we have a tendency, not
  realizing how deep in DS we may be, to also enter a ':' at the prompt of
  the 'parent' session.  In some cases that action causes the session to
  log off and thus loose our entire 'setup'.

  The same symptoms, although less frequent, are also observed even when
  no DS sessions have been established (as the attached example shows).
  ....
  ....
  LinkEd> e

  <SYS>::
  CPU=24. Connect=264. WED, JAN 27, 1999,  3:37 PM.
  <Your 'TELNET' connection has terminated>

  Connection #1 established to MAV.xxx.xxx
  MPE/iX:hello manager.sys
  ENTER USER PASSWORD:

 HP3000 Release: C.55.00 User Version: C.55.00 WED, JAN 27, 1999,  3:37 PM

 MPE/iX HP31900 C.05.08 Copyright Hewlett-Packard 1987. All rights reserved.

  <SYS>::
  Invalid first character in command name. (CIERR 9090)
  <SYS>::
  Invalid first character in command name. (CIERR 9090)
  <SYS>:
  <SYS>:linkedit
  HP Link Editor/iX (HP30315A.05.23) Copyright Hewlett-Packard Co 1986

  LinkEd> e

  <SYS>::
  Invalid first character in command name. (CIERR 9090)
  <SYS>: