Harry Lakser's first porting of GAP to Mac used the 'tick' rather than the
millisecond as the unit of time as explained in the ReadMe file. The next
version will have a full Mac implementation including slide bars and 'save'
and 'print' in the roll down menu. It will also use the millisecond as the
unit of time. An announcement will appear in mid-January.
N. S. Mendelsohn