Hello João, If you recall, I mentioned some error messages that occurred in the slime *messages* buffer when I tried to load log4cl: error in process filter: ad-Orig-slime-repl-emit: Text is read-only error in process filter: Text is read-only Well, this afternoon I was trying to track down a problem related to some work I was doing and I went to the *inferior-lisp* buffer and entered (sb-ext:describe-compiler-policy). That produced the following error message in the *messages* buffer: error in process filter: slime-repl-emit: Text is read-only error in process filter: Text is read-only If I enter (sb-ext:describe-compiler-policy) in the repl, I get normal output in the repl. Do I have some configuration issues, or is there some reason I can no longer use the *inferior-lisp* buffer for direct entry of lisp commands? I'm using emacs 23.4.1 and sbcl-1.13 if that's important. Paul Bowyer