At the end of a buffer, (forward-comment 1) or (forward-comment 999) returns t. These forms should return nil: ... If N comments are found as expected, with nothing except whitespace between them, return t; otherwise return nil. ... FSF Emacs's version of forward-comment gets this right. Here's a workaround until a change makes its way into the C source: ;; In XEmacs 20.4, (forward-comment 9999) at the end of a buffer returns t! (defadvice forward-comment (after forward-comment-eob activate) (if (and ad-return-value (eobp)) (setq ad-return-value nil))) -Michael Ernst mernst(a)cs.washington.edu