1. To get responsible responses, use the subject line;
like a line of:
'bad DEFUN syntax: (C:PBOX)'
or just
'bad DEFUN syntax'
2. Use a parens checker on any error that is ambiguous to you .
Since your
(defun C:PBOX) () ...
might work better as:
(defun C:PBOX () ....
'
S