Apple has released an update to Java 1.3.1 via their Software Update application. The download notes say:
“This update delivers improvements for text, mouse, and printing components in the Java 1.3.1 implementation for Mac OS X, and improves its overall stability and compatibility.
The implementation of text components has been completely updated, resolving a number of issues found in the use of TextAreas and TextFields.
Mouse behavior is improved, especially for mouse events that involve dragging in complex applications.
Many printing issues have been resolved including multi-page printing and clipping issues.”
Check out the URL for more information.