Advantech PCA-6153 Manual page 65

Panning Drivers
Special panning drivers are provided to allow high-resolution
modes to be displayed on a flat panel or CRT. These drivers will
show a section of a larger screen and will automatically pan, or
scroll, the screen horizontally and vertically when the mouse
reaches the edge of the display.
Linear Acceleration Drivers
A special high-performance linear acceleration driver is provided
for 256-color modes. This driver may require special hardware and
may not be supported on all systems.
Chapter 5 PCI SVGA Setup 57