IBM z61 Manuale Supplementare
Problem:
The
screen
stays
on
even
after
you
turn
off
your
computer.
Solution:
→
Press
and
hold
the
power
switch
for
4
seconds
or
more
to
turn
off
your
computer;
then
turn
it
on
again.
Problem:
Missing,
discolored,
or
bright
dots
appear
on
the
screen
every
time
you
turn
on
your
computer.
Solution:
→
This
is
an
intrinsic
characteristic
of
the
TFT
technology.
Your
computer’s
display
contains
multiple
thin-film
transistors
(TFTs).
A
small
number
of
missing,
discolored,
or
bright
dots
on
the
screen
might
exist
all
the
time.
Problem:
A
message,
“Unable
to
create
overlay
window,”
appears
when
you
try
to
start
DVD
playback.
or
You
You
get
poor
or
no
playback
while
running
video
playback,
DVD
playback,
or
game
applications.
Solution
→
Do
either
of
the
following:
–
If
you
are
using
32-bit
color
mode,
change
the
color
depth
to
16-bit
mode.
–
If
you
are
using
a
desktop
size
of
1280×1024
or
larger,
reduce
the
desktop
size
and
the
color
depth.
Battery
problems
Problem:
The
battery
cannot
be
fully
charged
by
the
power-off
method
in
the
standard
charge
time
for
your
computer.
Solution:
→
The
battery
might
be
over-discharged.
Do
the
following:
1.
Turn
off
the
computer.
2.
Make
sure
that
the
over-discharged
battery
is
in
the
computer.
3.
Connect
the
ac
adapter
to
the
computer
and
let
it
charge.
If
the
optional
Quick
Charger
is
available,
use
it
to
charge
the
over-discharged
battery.
If
the
battery
cannot
be
fully
charged
in
24
hours,
use
a
new
battery.
Solving
computer
problems
24
ThinkPad
®
Z61
Series
Service
and
Troubleshooting
Guide