1.

Improved interpolation of data close to surface elements.

2.

Multiple undo/redo could cause problems with rendering the legend.

1.

Added ability to turn off Pressure arrows display.

2.

When plotting results, the deviatoric stress option has been renamed to Von Mises stress.

3.

A new differential stress (sigma1-sigma3) plotting option has also been added.

4.

Help update.

1.

Added an option to the display options dialog to toggle between showing failure trajectories in just the failed zone versus at all grid points.

2.

Can now contour principle stress ratio sigma3/sigma1.

1.

Improved memory management for large number of grid points.

2.

Improved contouring up to the excavation surface.

1.

Toolbar update for Vista.

1.

Failure trajectories now drawn in factor of safety>1 regions as well.

1.

Generalized Hoek-Brown a can now be varied between 0 and 5.

1.

The mean stress plotted by the program was actually the first invariant of stress (sigma1+sigma2+sigma3). This quantity is now divided by 3 to give the mean stress.

1.

Program would crash when moving line queries interactively and highlighting data in a graph view at teh same time. This is fixed.

1.

Vista support for toolbars.

2.

Improved printing to Adobe Acorbal PDF.

1.

In a graph view, if the sampler and markers are on, and you double-click on a graph point, then close the graph view, the program would crash. Fixed.

2.

Added a verification manual and verification files.

3.

New updated Help.

1.

Program would crash when copying data from a graph to the clipboard. This is fixed.

1.

Added Failure Trajectories. You can turn them on/off in the Display Options dialog.

2.

There is now a Defaults button in the Display Options, Contour Options, Legend Options, and Preferences dialog for saving current settings as the program defaults or restoring factory dafaults.

3.

A couple of very minor bug fixes.

4.

New updated Help.