Artemio> Signaling: (wrong-type-argument stringp nil) This is a frequently reported bug. Artemio> Has anybody experienced the same problem? Any suggestions Artemio> as to how to fix it? Not yet. If you know how to reproduce it quickly (sounds like you do), make debug-on-error t (either from Options->Troubleshooting or with M-: (setq debug-on-error t) RET) and send us the backtrace. Please use M-x report-emacs-bug to format a full bug report. -- Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.