VMS Help FORTRAN, Error Messages, Compilation Errors, INVSTALAB  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  W

  MESSAGE TEXT:  Invalid statement label ignored

  EXPLANATION:  An improperly formed statement label (namely, a label
  containing letters) appeared in columns 1 to 5 of an initial line.
  When this error occurs, the statement label is ignored.