Distorted high-resolution video can be caused by an outdated graphics card driver or incompatibility with DirectDraw. To troubleshoot: 1. Upgrade the graphics card driver by downloading the latest version from the manufacturer's website. 2. Disable DirectDraw acceleration in the graphics card settings which may degrade video quality but resolve distortions. 3. As a last resort, replace the graphics card if the issue persists after other steps.

1. Distorted High-Resolution Images
Article ID: GV28-11-09-20-y
Release Date: 09/20/2011
Symptom
A distorted image showed up from the beginning when you tried to play the high-resolution
AVI file using the third-party media player, such as Windows Media Player and Real Player.
The image looks like the picture below.
GeoVision Inc. 1 Revision Date: 9/23/2011

2. Resolution
Normally old graphics card driver or the driver’s incompatibility with DirectDraw function can
cause the problem. Try the following methods in the order to troubleshoot the display problem.
Method 1: Upgrade your graphics card driver
Go to the graphics card manufacturer’s website, download and install the latest driver version.
To check if the driver is up-to-date, you can see the Driver Date from Windows Device
Manager. Take Windows XP for example: click Start, select Control Panel and choose
Device Manager from the list.
GeoVision Inc. 2 Revision Date: 9/23/2011

3. Method 2: Disable DirectDraw Acceleration
Take Windows XP as example: Click Start, select Run and type dxdiag. In the DirectX
Diagnostic Tool dialog box, click the Display tab and disable DirectDraw Acceleration.
Please note that video quality may be degraded after you disable the DirectDraw.
Method 3: Use a newer graphics card
If the display problem persists after upgrading the driver and disabling the DirectDraw, you will
need to replace your current graphics card with a newer one.
GeoVision Inc. 3 Revision Date: 9/23/2011