Display problems (continued)
Blurry video or requested
resolution cannot be set.
The picture is broken up, rolls,
jitters, or flashes.
Vibrating or rattling noise coming
from inside a CRT monitor when
Clicking noise coming from inside a
High pitched noise coming from
inside a flat panel monitor.
Fuzzy focus; streaking, ghosting,
or shadowing effects; horizontal
scrolling lines; faint vertical bars; or
unable to center the picture on the
screen. (Flat panel monitors using
an analog VGA input connection
Certain typed symbols do not
Solving audio problems
Sound does not come out of the
speaker or headphones.
Chapter 5 System diagnostics and troubleshooting
If the graphics controller was
upgraded, the correct video
drivers might not be loaded.
Monitor is not capable of
The monitor connections might
be incomplete or the monitor
might be incorrectly adjusted.
Monitor needs to be
Monitor degaussing coil has
Electronic relays have been
activated inside the monitor.
Brightness and contrast
settings are too high.
Flat panel monitor's internal
digital conversion circuits
might be unable to correctly
interpret the output
synchronization of the
The font you are using does
not support that particular
Software volume control is
The external speakers are not
External speakers are plugged
into the wrong audio jack.
Install the video drivers included in the upgrade kit.
Change requested resolution.
Be sure the monitor cable is securely connected to the
In a two-monitor system or if another monitor is in
close proximity, be sure the monitors are not
interfering with each other's electromagnetic field by
moving them apart.
Be sure that fluorescent lights or fans are not too close
to the monitor.
Degauss the monitor.
None. It is normal for the degaussing coil to be activated
when the monitor is powered on.
None. It is normal for some monitors to make a clicking
noise when turned on and off, when going in and out of
Standby mode, and when changing resolutions.
Lower brightness and contrast settings.
Select the monitor's Auto-Adjustment option in the
monitor's on-screen display menu.
Manually synchronize the Clock and Clock Phase on-
screen display functions. Download SoftPaq
SP20930 or SP22333, depending on the monitor, to
assist with the synchronization.
Use the Character Map to locate the and select the
appropriate symbol. Click Start>All Programs>
Accessories>System Tools>Character Map. You can
copy the symbol from the Character Map into a document.
Double-click the Speaker icon on the taskbar and use the
volume slider to adjust the volume.
Turn on the external speakers.
See the sound card documentation for proper speaker