Hi, and welcome to The PainterFactory, John!
To disable the Enhanced Brush Ghost (which is what ghi means, or should mean since that's one thing that can slow down Painter X's performance), go to:
Mac - Painter X > Preferences > General
Windows - Edit > Preferences > General
Then uncheck the Enhanced Brush Ghost box and click the OK button.
Also check these two threads at the Conceptart.org Painter forum to learn how to keep Painter running smoothly and how to speed up your Painter brushes:
Keeping Painter 6 Through Painter X.1 Running Smoothly - Updated February 6, 2008, by Jinny Brown
Hot-rodding Your Brushes in Corel Painter, by John Derry