viewing images?

What do I need to set so that when I find-file on a .gif, .jpeg, etc. I see the image? At one time this was the default behaviour, but I don't get this with: uname -a: Linux adglinux1.hns.com 2.4.3-12 #1 Tue Jul 24 09:47:32 EDT 2001 i686 unknown ../../xemacs-21.4.4/configure '--prefix=/usr' '--mail-locking=lockf' '--with-pop' '--with-mule' XEmacs 21.4.4 "Artificial Intelligence" configured for `i686-pc-linux'. Compilation / Installation: Source code location: /usr/local/src/xemacs-21.4.4 Installation prefix: /usr Operating system description file: `s/linux.h' Machine description file: `m/intel386.h' Compiler: gcc -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wshadow -Wsign-compare Relocating allocator for buffers: no GNU version of malloc: yes - Using Doug Lea's new malloc from the GNU C Library. Window System: Compiling in support for the X window system: - X Windows headers location: /usr/X11R6/include - X Windows libraries location: /usr/X11R6/lib - Handling WM_COMMAND properly. Using Lucid menubars. Using Lucid scrollbars. TTY: Compiling in support for ncurses. Compiling in support for GPM (General Purpose Mouse). Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Compiling in support for TIFF images. Sound: Compiling in support for sound (native). Databases: Compiling in support for Berkeley database. Compiling in support for LDAP. Compiling in support for PostgreSQL. - Using PostgreSQL header file: pgsql/libpq-fe.h - Using PostgreSQL V7 bindings. Internationalization: Compiling in support for Mule (multi-lingual Emacs). Compiling in support for XIM (X11R5+ I18N input method). - Using raw Xlib to provide XIM support. Compiling in support for Canna on Mule. Compiling in support for the WNN input method on Mule. Mail: Compiling in support for POP mail retrieval. Compiling in support for "lockf" mail spool file locking method. Other Features: Compiling in support for dynamic shared object modules.