Cursor locked to mouse, not pen

Description of the Problem, or Question?

This is my first time using MyPaint, and the only issue I’ve found is that the cursor is locked onto the mouse instead of my pen. The tablet is able to draw, but the cursor stays where the mouse is.

Basic System Details

AMD Phenom 9150e 1.80GHz, 4GB, 1TB HDD
MyPaint version:
1.2.1

Operating System + Version:
WIn7 SP1

Make and Model # of Graphic Tablet:
Wacom CTL-4100

Please Tell Us How to Reproduce the Problem in Steps.

Open MyPaint and draw