Most
computers,
operating
systems,
and
application
programs
come
with
information
that
contains
troubleshooting
procedures
and
explanations
of
error
messages
and
error
codes.
The
information
that
comes
with
your
computer
also
describes
the
diagnostic
tests
that
you
can
perform.
If
you
suspect
a
software
problem,
refer
to
the
information
for
the
operating
system
or
application
program.
for
service
Please
have
the
following
information
ready:
v
Machine
type,
model,
and
serial
number
v
Description
of
the
problem
v
Exact
wording
of
any
error
messages
v
Hardware
and
software
configuration
information
To
find
the
telephone
number
for
the
Support
Center
nearest
you,
see
“Telephone
numbers”
in
Chapter
3,
“Getting
help
and
service
from
IBM,”
on
page
39.
ThinkPad
®
G40
Series
Service
and
Troubleshooting
Guide