diff --git a/doinst.sh b/doinst.sh
index f9cb8a5..298aee8 100644
--- a/doinst.sh
+++ b/doinst.sh
@@ -2,11 +2,15 @@
 config() {
   NEW="$1"
   OLD="`dirname $NEW`/`basename $NEW .new`"
+  ORIGMD5="$2"
   # If there's no config file by that name, mv it over:
   if [ ! -r $OLD ]; then
     mv $NEW $OLD
   elif [ "`cat $OLD | md5sum`" = "`cat $NEW | md5sum`" ]; then # toss the redundant copy
     rm $NEW
+  elif [ "`cat $OLD | md5sum`" = "$ORIGMD5  -" ]; then
+    mv $OLD $OLD.orig
+    mv $NEW $OLD
   fi
   # Otherwise, we leave the .new copy for the admin to consider...
 }
diff --git a/etc/profile b/etc/profile
new file mode 100644
index 0000000..9e15f6c
--- /dev/null
+++ b/etc/profile
@@ -0,0 +1,69 @@
+# /etc/profile: This file contains system-wide defaults used by
+# all Bourne (and related) shells.
+
+# Set the values for some environment variables:
+export MINICOM="-c on"
+export MANPATH=/usr/local/man:/usr/man
+export HOSTNAME="`cat /etc/HOSTNAME`"
+export LESSOPEN="|lesspipe.sh %s"
+export LESS="-M"
+
+# If the user doesn't have a .inputrc, use the one in /etc.
+if [ ! -r "$HOME/.inputrc" ]; then
+  export INPUTRC=/etc/inputrc
+fi
+
+# Set the default system $PATH:
+PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
+
+# I had problems with the backspace key using 'eval tset' instead of 'TERM=',
+# but you might want to try it anyway instead of the section below it.  I
+# think with the right /etc/termcap it would work.
+# eval `tset -sQ "$TERM"`
+
+# Set TERM to linux for unknown type or unset variable:
+if [ "$TERM" = "" -o "$TERM" = "unknown" ]; then
+ TERM=linux
+fi
+
+# Set ksh93 visual editing mode:
+if [ "$SHELL" = "/bin/ksh" ]; then
+  VISUAL=emacs
+#  VISUAL=gmacs
+#  VISUAL=vi
+fi
+
+# Set a default shell prompt:
+#PS1='`hostname`:`pwd`# '
+if [ "$SHELL" = "/bin/pdksh" ]; then
+ PS1='! $ '
+elif [ "$SHELL" = "/bin/ksh" ]; then
+ PS1='! ${PWD/#$HOME/~}$ '
+elif [ "$SHELL" = "/bin/zsh" ]; then
+ PS1='%n@%m:%~%# '
+elif [ "$SHELL" = "/bin/ash" ]; then
+ PS1='$ '
+else
+ PS1='\u@\h:\w\$ '
+fi
+PS2='> '
+export PATH DISPLAY LESS TERM PS1 PS2
+
+# Default umask.  A umask of 022 prevents new files from being created group
+# and world writable.
+umask 022
+
+# Notify user of incoming mail.  This can be overridden in the user's
+# local startup file (~/.bash.login or whatever, depending on the shell)
+if [ -x /usr/bin/biff ]; then
+ biff y 2> /dev/null
+fi
+
+# Append any additional sh scripts found in /etc/profile.d/:
+for profile_script in /etc/profile.d/*.sh ; do
+  if [ -x $profile_script ]; then
+    . $profile_script
+  fi
+done
+unset profile_script
+
diff --git a/etc/profile.orig b/etc/profile.orig
new file mode 100644
index 0000000..8c5df4d
--- /dev/null
+++ b/etc/profile.orig
@@ -0,0 +1,79 @@
+# /etc/profile: This file contains system-wide defaults used by
+# all Bourne (and related) shells.
+
+# Set the values for some environment variables:
+export MINICOM="-c on"
+export MANPATH=/usr/local/man:/usr/man
+export HOSTNAME="`cat /etc/HOSTNAME`"
+export LESSOPEN="|lesspipe.sh %s"
+export LESS="-M"
+
+# If the user doesn't have a .inputrc, use the one in /etc.
+if [ ! -r "$HOME/.inputrc" ]; then
+  export INPUTRC=/etc/inputrc
+fi
+
+# Set the default system $PATH:
+PATH="/usr/local/bin:/usr/bin:/bin:/usr/games"
+
+# For root users, ensure that /usr/local/sbin, /usr/sbin, and /sbin are in
+# the $PATH.  Some means of connection don't add these by default (sshd comes
+# to mind).
+if [ "`id -u`" = "0" ]; then
+  echo $PATH | grep /usr/local/sbin 1> /dev/null 2> /dev/null
+  if [ ! $? = 0 ]; then
+    PATH=/usr/local/sbin:/usr/sbin:/sbin:$PATH
+  fi
+fi
+
+# I had problems with the backspace key using 'eval tset' instead of 'TERM=',
+# but you might want to try it anyway instead of the section below it.  I
+# think with the right /etc/termcap it would work.
+# eval `tset -sQ "$TERM"`
+
+# Set TERM to linux for unknown type or unset variable:
+if [ "$TERM" = "" -o "$TERM" = "unknown" ]; then
+ TERM=linux
+fi
+
+# Set ksh93 visual editing mode:
+if [ "$SHELL" = "/bin/ksh" ]; then
+  VISUAL=emacs
+#  VISUAL=gmacs
+#  VISUAL=vi
+fi
+
+# Set a default shell prompt:
+#PS1='`hostname`:`pwd`# '
+if [ "$SHELL" = "/bin/pdksh" ]; then
+ PS1='! $ '
+elif [ "$SHELL" = "/bin/ksh" ]; then
+ PS1='! ${PWD/#$HOME/~}$ '
+elif [ "$SHELL" = "/bin/zsh" ]; then
+ PS1='%n@%m:%~%# '
+elif [ "$SHELL" = "/bin/ash" ]; then
+ PS1='$ '
+else
+ PS1='\u@\h:\w\$ '
+fi
+PS2='> '
+export PATH DISPLAY LESS TERM PS1 PS2
+
+# Default umask.  A umask of 022 prevents new files from being created group
+# and world writable.
+umask 022
+
+# Notify user of incoming mail.  This can be overridden in the user's
+# local startup file (~/.bash.login or whatever, depending on the shell)
+if [ -x /usr/bin/biff ]; then
+ biff y 2> /dev/null
+fi
+
+# Append any additional sh scripts found in /etc/profile.d/:
+for profile_script in /etc/profile.d/*.sh ; do
+  if [ -x $profile_script ]; then
+    . $profile_script
+  fi
+done
+unset profile_script
+
diff --git a/rocket-config.SlackBuild b/rocket-config.SlackBuild
index b7e7dc3..906f2a3 100755
--- a/rocket-config.SlackBuild
+++ b/rocket-config.SlackBuild
@@ -15,12 +15,11 @@ mkdir -p $PKG/install
 cat $CWD/slack-desc > $PKG/install/slack-desc
 cat $CWD/doinst.sh > $PKG/install/doinst.sh
 
-find $CWD/etc -type f -printf '%P\n' | while read config; do
+find $CWD/etc -type f ! -name '*.orig' -printf '%P\n' | while read config; do
     echo Installing /etc/$config
     install -Dm644 $CWD/etc/$config $PKG/etc/$config.new
-    echo config etc/$config.new >> $PKG/install/doinst.sh
+    echo config etc/$config.new $(cat $CWD/etc/$config.orig | md5sum | cut -d ' ' -f 1) >> $PKG/install/doinst.sh
 done
 
 cd $PKG
-/sbin/makepkg -l y -c n  $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz
-
+/sbin/makepkg -l y -c n $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz
diff --git a/slack-desc b/slack-desc
index dd2c513..48d7be9 100644
--- a/slack-desc
+++ b/slack-desc
@@ -9,11 +9,11 @@
 rocket-config: rocket-config (my configuration files)
 rocket-config:
 rocket-config: This package contains my custom system configuration,
-rocket-config:	 to be updated through slackpkg.
-rocket-config:
-rocket-config:
-rocket-config:
-rocket-config:
+rocket-config:   to be updated through slackpkg.
 rocket-config:
+rocket-config: If it detects a default config file, it will be replaced,
+rocket-config:   and the original will be saved with the .orig extension.
+rocket-config: Consider removing the .orig files, or restore them when removing
+rocket-config:   this package.
 rocket-config:
 rocket-config: