Another ISC 386/ix bug?

[Vidiot]

Has anyone seen the following problem (ISC support?):

Entering commands on the keyboard fails to do anything.  What is entered
is seen on the screen, but the computer ignores you.  The switching between
virtual screens works, but that is all.  Even logging in via the modem fails
to operate.  Trying to log in via a new virtual screen fails, ie, you enter
your login name, but it fails to respond with the password prompt.

This has happened a couple of times before and the only way to "fix" it is
to turn off the power and then turn it back on.

System: Compaq 386/20e
Unix: ISC 2.0.2
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