Information provided here, can be useful for you in order to properly configure your tablet using the xsetwacom utility.
Pay special attention to this part, which defines the tablet mode:
The Mode parameter sets the device mode as either Relative, the default for cursor (the Wacom tablet mouse) and tablet touch or
Absolute, the default for the stylus, eraser, and tablet PC touch.
Relative Mode means pointer tracking for the device will function like
a mouse, whereas Absolute Mode means the pointer corresponds to the
device's actual position on the tablet or tablet PC screen. An example
of the command would be: xsetwacom set "device name" Mode "Absolute"
Note that using the Mode parameter in an xsetwacom command will
prevent you from pulling a Guideline in Gimp with your mouse due to a
long standing GTK bug.
There is a way to make this behavior the default and make it permanent. All the information is provided in the appropriate section.