Dear list, The following code in init.el on Xemacs 21.4.15-r3 and ESS 5.1.21 on Gentoo Linux: (setq inferior-ess-same-window nil) should arrange that M-x R opens the inferior ess process in a new window. It works in Windows XP with ESS 5.2.3 but I can't get it going in linux. Any help, please Best wishes Fredrik