Gradients drawn in certain models display more jagged than other objects when viewed at high zoom percentages. Those objects are displayed as PICT objects, displayed on-screen by the QuickDraw display engine rather than the ClarisImpact display engine.
To see the problem:
1. Create a Pie Chart.
2. Fill one of the slices with a gradient.
4. View the edge of the slice with the gradient at 3200%.
The gradient will print properly.