.he 'MISHAP068''Page %'
.fo 'Aaron Sloman''February 78'
.sp
: 68	Have you tried to trace something which isn't a function?
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e.g. if you type - trace foo; without having defined a function called foo,
you'll get this error. other mistakes using trace produce slightly
slightly different error messages, e.g.-
 	trace 99;
 	trace 'foo';
 	trace hd;
 	trace function foo;
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try them.
unfortunately you cannot (at present) trace system functions like hd.
you can trace library functions, like match, add, draw.
