When I execute slime-connect, I get an error about an invalid coding system. The slime-connect function in slime.el calls slime-check-coding-system with nil as argument. The following hack solves the problem: diff -u -r1.565 slime.el --- slime.el 22 Nov 2005 10:36:22 -0000 1.565 +++ slime.el 22 Nov 2005 18:21:50 -0000 @@ -1317,7 +1317,7 @@ (when (and (interactive-p) slime-net-processes (y-or-n-p "Close old connections first? ")) (slime-disconnect)) - (slime-check-coding-system coding-system) + (slime-check-coding-system (or coding-system slime-net-coding-system)) (message "Connecting to Swank on port %S.." port) (let* ((process (slime-net-connect host port coding-system)) (slime-dispatching-connection process)) cvs server: Diffing doc Marco