I just installed Emacs 23.1 (Mac OS, if that matters), and I noticed that the *SLIME Compilation* buffer's fontification became horribly slow. Whenever I run slime-compile-defun, for example, I get this: Fontifying *SLIME Compilation*... (regexps...............................................) Whereas the compilation itself takes "0.00 secs" according to the messages, this fontification takes probably 3-5 seconds. This never happened under Emacs 22.3. I tried disabling everything in my .emacs.d/init.el file, and I also tried turning off everything in slime-setup except the REPL: (slime-setup '(slime-repl)) No dice, it's all still slow. SLIME is latest from CVS. Is there anything I can do to fix this? -- Regards, (concatenate Constantine Vetoshev 'string (mapcar #'code-char (reverse '(109 111 99 46 108 105 97 109 103 64 118 99 100 114 97 112 101 103))))