hi, It seems like that latest stable and beta version of XEmacs dies with Segmentation fault on linux system. Others on linux-glibc ML and xemacs-users-ja ML can also reproduce this. All system I heard about is on linux with glibc.... This is the backtrace from gdb after you run xemacs with '-t' option only. (gdb) bt #0 0x4010a5f5 in chunk_free () from /lib/libc.so.6 #1 0x4010a4c8 in free () from /lib/libc.so.6 #2 0x400da062 in exit () from /lib/libc.so.6 #3 0x8084c38 in fatal (fmt=0x8190e60 "Option `%s' requires an argument\n") at emacs.c:293 #4 0x8085df8 in sort_args (argc=2, argv=0xbffff904) at emacs.c:1894 #5 0x8085224 in xemacs_21_2_b19_i586_pc_linux (argc=2, argv=0xbffff904, envp=0xbffff910, restart=0) at emacs.c:588 #6 0x80867f4 in main (argc=2, argv=0xbffff904, envp=0xbffff910) at emacs.c:2188 -- yashi