User's Manual
3.
If you
entered
an
MS-DOS
command
that
you
want
to
stop,
there
are
special
key
combinations
you
can
use
to
cancel
the
command.
These
methods
may
also
work
in
your
application
programs:
0
Press
Pause
0
Hold
down
Ctrl
and
press
C
0
Hold
down
Ctrl
and
press
Break.
4.
An
application
program
can
occasionally
lock
the
computer,
making
it
unresponsive
to
keyboard
commands.
If your
computer
does
not
respond
when
you
type
on
the
keyboard,
you
can
reset
it.
Follow
the
instructions
in
Chapter
3.
5.
If
resetting
the
computer
does
not
help,
remove
any
diskettes,
turn
off your
system,
wait
20
seconds,
and
turn
it
back
on.
Then
restart
your
application
program.
If
none
of
these
solutions
solve
your
software
problem,
contact
the
software
manufacturer
for
technical
support.
Printer Problems
Below
are
some
general
steps
to
follow
if
you
have
difficulty
with
your
printer.
If
the
problem
persists
and
you
need
more
detailed
information,
check
your
printer
manual.
If
the
the
problem
stems
from
the
port
to
which
your
printer
is
connected,
you
will
see a
port
error
message.
See
steps
5
and
6,
below,
for
more
information
about
handling
port
difficulties.
6-18
Troubleshooting