sb-html is related to the speedbar package. Can you reproduce this error message with emacs -q (i.e. without loading any personal Emacs preferences of yours)?
Did you previously use a different version of Emacs, by any chance? If you (setq debug-on-error t) and then load a .html file, do you get a backtrace? If yes, could you save that buffer and attach the resulting file to this bug report? Thanks in advance. ** Changed in: emacs23 (Ubuntu) Status: New => Incomplete -- File mode specification error: (file-error "Cannot open load file" "sb-html") https://bugs.launchpad.net/bugs/495939 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs