Battery problems, Battery, Problems – Lenovo Z61t User Manual
Page 30: Solving, Computer
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
get
poor
or
no
playback
while
running
video
playback,
DVD
playback,
or
game
applications.
Solution:
Do
either
of
the
following:
v
If
you
are
using
32-bit
color
mode,
change
the
color
depth
to
16-bit
mode.
v
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:
For
details,
see
the
Battery
and
power
category
in
Troubleshooting
under
the
Problem
solving
section
in
Access
Help.
Problem:
Your
computer
shuts
down
before
the
battery
status
indicator
shows
empty,
-or-
Your
computer
operates
after
the
battery
status
indicator
shows
empty.
Solution:
Discharge
and
recharge
the
battery.
Problem:
The
operating
time
for
a
fully
charged
battery
is
short.
Solution:
For
details,
see
the
Battery
and
power
category
in
Troubleshooting
under
the
Problem
solving
section
in
Access
Help.
Problem:
The
computer
does
not
operate
with
a
fully
charged
battery.
Solution:
The
surge
protector
in
the
battery
might
be
active.
Turn
off
the
computer
for
one
minute
to
reset
the
protector;
then
turn
on
the
computer
again.
Problem:
The
battery
does
not
charge.
Solution:
For
details,
see
the
Battery
and
power
category
in
Troubleshooting
under
the
Problem
solving
section
in
Access
Help.
Solving
computer
problems
22
ThinkPad
®
Z61
Service
and
Troubleshooting
Guide