A printer was not found connected to your computer (or your network.)  Check that you have established communication to a printer from your Chooser item under the Apple menu.

Your print job was cancelled.

There are no moves to print.  I just saved you a sheet a paper that would have otherwise been ejected from the printer!

This checker board contains high resolution, 16-bit graphics.  Currently, this cannot be printed from within the WCC program. However, holding down Command-Shift-3 will take a screen snapshot, saving the image as PICT file.