We've found that WACOM's newest 4.6x and 4.7x
version tablet driver do not work well with Wizard Brush 2.0 and PhotoGather 1.0.
There come out broken strokes.
We've contacted WACOM to resolve this problem. But at
this time, you can overcome the bug with one of those two methods:
1. Uninstall WACOM's 4.6x and 4.7x driver and use its
4.4x or 4.5x tablet driver.
2. Close the 3D cursor function in WizardBrush 2.0 and PhotoGather 1.0.