. There are a couple of bugs (now fixed) associated with the change in version 1.9 switching from single- to double-precision data:1) Smooth command for XY plots produced a botched-up curve.
2) On some systems under some circumstances, the Contour Options command on the Options menu for 3D surface plots crashed.
Sorry for any inconvenience this might have caused.
As always, your comments and suggestions are welcome.