User guide

58 Matrox Marvel – User Guide
4
Cause
Your display settings may be too high. As a result, video file playback may not be fully
supported by Matrox hardware.
1
Solution
Try lowering your display settings. We recommend a 1024 × 768 or lower display resolution
with a 16-bit color palette.
Windows 95/98 – To access display settings, see “Accessing PowerDesk property sheets”,
page 21.
5
Cause
The video file you’re playing may not be encoded with Matrox MJPEG. Playback of video
files
not encoded with Matrox MJPEG isn’t accelerated by Matrox video editing hardware.
1
Solution
Capture your video files with Matrox MJPEG. For more information, see “Capture options”,
page 35.
6
Cause
If the problem is specific to Matrox MJPEG video files, Microsoft DirectVideo may be
enabled. Matrox MJPEG uses DirectShow,
not DirectVideo.
1
Solution
Disable DirectVideo. With the Notepad program, open the system.ini file in your Windows
folder and disable the “
VIDS.DRAW=dvideo.dll ” line in the “ [drivers32] ” section. Disable it
by placing a semicolon at the beginning of the line. Save your changes, close the file, then
restart your computer.
7
Cause
Your Matrox graphics card may be sharing an IRQ (interrupt
request) with another PCI card in your computer (for example, a
network card).
Windows 95/98 – To see if your graphics card is sharing an IRQ:
1 Right-click the My Computer icon on your Windows desktop
background, then click
Properties Æ Device Manager Æ
Properties .
2 Look in the list box to see if your Matrox graphics card is
assigned the same IRQ number as another PCI card in your
computer.
1
Solution
Try moving the PCI card to another PCI slot in your computer. For more information, see the
documentation for this card or see your system manual.
Problem Poor video capture quality
1
Cause
The settings a video file was created with may not be optimal.
1
Solution
If possible, recreate the video file with more optimal settings. If you’re using PC-VCR
Remote, see “Before you record to a video file”, page 34.
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