diff --git a/data/login b/data/login
index f90a043..14cdcee 100644
--- a/data/login
+++ b/data/login
@@ -6,6 +6,18 @@ xmes() {
 $2" | iconv -f utf8 -t koi8-r - | xargs xmessage -buttons OK:0 -default OK
 }
 
+if [[ "`ps axeo command | grep xdm/logout | grep -v grep | \
+	sed -n -r 's/.* USER=([^ ]+) .*/\1/p'`" == "$USER" ]];
+then
+	xmessage -buttons "" "Please wait to ending previous session" &
+	while [[ "`ps axeo command | grep xdm/logout | grep -v grep | \
+		sed -n -r 's/.* USER=([^ ]+) .*/\1/p'`" == "$USER" ]]
+	do
+		sleep 1
+	done
+	kill -9 `ps ax | sed -n -r '/grep/!{s/([0-9]+) .*xmessage -buttons  Please.*/\1/p}'` &>/dev/null
+fi
+
 env-update
 source /etc/profile
 
diff --git a/profile/install/client/etc/slim.conf b/profile/install/client/etc/slim.conf
index b62a2b2..ef9842f 100644
--- a/profile/install/client/etc/slim.conf
+++ b/profile/install/client/etc/slim.conf
@@ -3,10 +3,10 @@
 #?cl_pass_step==install#
 login_cmd               if ! /usr/share/calculate/xdm/cmd_login ; then exit 1; fi && exec /bin/bash -login /etc/X11/xinit/xinitrc
 sessionstart_cmd	export USER=%user && /usr/share/calculate/xdm/login && /usr/bin/sessreg -a -l :0.0 %user
-sessionstop_cmd         export USER=%user && /usr/share/calculate/xdm/logout && /usr/bin/sessreg -d -l :0.0 %user
+sessionstop_cmd         export USER=%user && start-stop-daemon --start --exec /usr/share/calculate/xdm/logout && /usr/bin/sessreg -d -l :0.0 %user
 #cl_pass_step#
 #?cl_pass_step==uninstall#
 login_cmd               exec /bin/bash -login /etc/X11/xinit/xinitrc
 sessionstart_cmd	/usr/bin/sessreg -a -l :0.0 %user
 sessionstop_cmd         /usr/bin/sessreg -d -l :0.0 %user
-#cl_pass_step#
\ No newline at end of file
+#cl_pass_step#