Samsung SDP-950STA Software User's Manual page 55

Symptom
If the SDP Viewer does
not run
The device operates in
USB 1.1 mode even
when it is connected to
a USB 2.0 compatible
system.
The device is connected
to a USB 2.0 compatible
port but the screen
display is slow.
To run the SDP Viewer, the digital visual presenter
must be connected to a Macintosh. The digital visual
presenter power must also be turned on.
Check the USB connection and the digital visual
presenter power.
To operate in USB 2.0 mode, the device must be
connected to a USB 2.0 compatible port or hub.
Connecting the device to a USB 1.1 hub connected
to a USB 2.0 compatible port or a keyboard/monitor
USB port makes it operate in 1.1 mode.
Close any other applications that are running at the
same time.
The screen display may be slow for some systems
with a low-specification graphics board.
Solution
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