Touchscreen
properties
dialog
box
Problem
Recommended
Action
You
have
touch,
but
cannot
open
the
Touchscreen
Properties
dialog
box.
Only
the
touchscreen
USB
driver
was
installed
and
the
TouchWare
was
not
completely
installed.
Unplug
your
touchscreen
from
the
USB
port
and
reinstall
the
TouchWare.
The
Touchscreen
Properties
dialog
box
always
opens
to
the
Hardware
tab
The
TouchWare
is
unable
to
find
or
communicate
with
the
touchscreen
controller.
v
Check
the
Controller
Information
box
on
the
Hardware
tab.
If
the
OK
message
displays,
contact
technical
support.
v
If
the
message
NOT
FOUND
displays,
review
the
cable
connections
Calibrating
the
touchscreen
Calibration
defines
the
dimensions
and
center
of
the
active
area
of
the
touchscreen.
Calibration
also
aligns
the
touchscreen-active
area
to
the
underlying
.
Calibrate
your
touchscreen
when:
v
You
initially
install
the
TouchWare
v
The
cursor
does
not
accurately
follow
your
finger
movement
v
You
change
the
resolution
or
mode
v
You
adjust
the
touchscreen
controller
frequency
using
the
Stabilize
Cursor
function
v
You
enable
or
disable
the
Filtering
option
Note:
During
calibration,
the
lift-off
position
of
your
touch,
and
not
the
touchdown
position,
determines
the
calibration
point.
If
your
finger
is
not
correctly
positioned
on
the
screen,
you
can
slide
your
finger
to
the
center
of
the
target.
Hold
your
finger
as
still
as
possible
after
you
reach
the
calibration
point.
Do
not
use
any
lateral
motion
during
lift-off.
1.
Allow
the
4820
SurePoint
Solution
to
warm-up
at
least
one-half
hour
before
you
begin
calibration.
2.
Open
the
Touchscreen
Properties
dialog
box.
Select
the
Calibrate
tab.
3.
Click
Calibrate
.
A
calibration
target
appears
in
the
lower
left
corner
of
the
screen.
4.
Touch
the
touchscreen
and
position
your
fingertip
to
completely
cover
the
target.
Hold
your
touch
for
at
least
three
seconds.
5.
Lift
your
finger
off
of
the
screen
when
you
are
satisfied
that
you
accurately
touched
the
target.
6.
Touch
the
touchscreen
and
position
your
fingertip
to
completely
cover
the
next
target.
Hold
your
touch
for
at
least
three
seconds.
7.
Lift
your
finger
off
of
the
screen.
The
program
saves
the
new
calibration
values
and
displays
the
following
dialog
box:
8.
Test
the
calibration
as
follows:
a.
Touch
random
points
on
the
screen
and
check
that
the
system
locates
the
cursor
underneath
your
finger.
14-2
4820
SurePoint
Solution
System
Reference
Summary of Contents for 4820
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Page 97: ...Part 7 Appendixes Copyright IBM Corp 1999 2003 ...
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