autologin funktioniert nicht mehr

#
# Default LTSP dhcpd.conf config file.
#

authoritative;

subnet 192.168.2.0 netmask 255.255.255.0 {
    range 192.168.2.100 192.168.2.110;
    option domain-name "homebase";
#    option domain-name-servers 192.168.2.1;
    option broadcast-address 192.168.2.255;
    option routers 192.168.2.1;
    next-server 192.168.2.100;
#    get-lease-hostnames true;
    option subnet-mask 255.255.255.0;
    option root-path "192.168.2.100:/opt/ltsp/i386";

   host erni {
	#filename "/ltsp/i386/vmlinuz";
	server-name "kermit";
	hardware ethernet 00:08:54:07:C0:68;
	fixed-address 192.168.2.101;
	}

   host bert {
	#filename "/ltsp/i386/vmlinuz";
	server-name "kermit";
	hardware ethernet 00:08:54:07:C0:67;
	fixed-address 192.168.2.102;
	}

   host grobi {
	#filename "/ltsp/i386/pxelinux.0";
	server-name "kermit";
	next-server 192.168.2.100;
	hardware ethernet 00:10:22:FE:68:56;
	fixed-address 192.168.2.103;
	}

   host lilo {
	#filename "/ltsp/i386/vmlinuz";
	server-name "kermit";
	hardware ethernet 00:C0:9F:7A:BC:EA;
	fixed-address 192.168.2.104;
	}

   host tifi {
	#filename "/ltsp/i386/vmlinuz";
	server-name "kermit";
	hardware ethernet 00:30:05:79:E2:6F;
	fixed-address 192.168.2.105;
	}

    if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" {
        filename "/ltsp/i386/pxelinux.0";
    } else {
        filename "/ltsp/i386/nbi.img";
    }
}

# This is the default lts.conf file for ltsp 5.
# For more information about valid options please see: 
# /usr/share/doc/ltsp-client/examples/lts-parameters.txt.gz
# in the client environment

[default] 
    SERVER = 192.168.2.100
    XSERVER = auto
    XDM_SERVER = 192.168.2.100
    X_MOUSE_PROTOCOL   = "PS/2"
    X_MOUSE_DEVICE     = "/dev/psaux"
    X_MOUSE_RESOLUTION = 400
    X_MOUSE_BUTTONS    = 3
    XKBLAYOUT = de
    #USE_NFS_SWAP = Y
    SOUND=False
    LDM_SESSION="/usr/bin/startkde"
    #SCREEN_01 = startx
    RUNLEVEL = 5
    #LOCALDEV=False
    #CONFIGURE_X=False
    X_COLOR_DEPTH=16


[00:08:54:07:c0:68]
    X_MODE_0 = 1024x768
    #LDM_SESSION="/usr/bin/startkde"
    LDM_AUTOLOGIN = True
    LDM_USERNAME = "gast1"
    LDM_PASSWORD = "gast1+"
    LDM_DIREKTX = True
    NBD_SWAP = True

[00:08:54:07:c0:67]
    X_MODE_0 = 1024x768
    #LDM_SESSION="/usr/bin/startkde"
    LDM_AUTOLOGIN = True
    LDM_USERNAME = "gast2"
    LDM_PASSWORD = "gast2+"
    LDM_DIREKTX = True
    NBD_SWAP = True

[00:10:22:FE:68:56]
    USE_LOCAL_SWAP = True
    X_MODE_0 = 1024x768
    LDM_AUTOLOGIN = True
    LDM_USERNAME = "gast3"
    LDM_PASSWORD = "gast3+"
    #LDM_SESSION="/usr/bin/startkde"
    LDM_DIREKTX = True

[00:C0:9F:7A:BC:EA]
    X_MODE_0 = 1024x768
    #LDM_SESSION="/usr/bin/startkde"
    LDM_AUTOLOGIN = True
    LDM_USERNAME = "gast2"
    LDM_PASSWORD = "gast2+"
    LDM_DIREKTX = True
    NBD_SWAP = True

[00:30:05:79:E2:6F]
    #USE_LOCAL_SWAP = True
    X_MODE_0 = 1024x768
    #LDM_SESSION="/usr/bin/startkde"
    LDM_AUTOLOGIN = True
    LDM_USERNAME = "gast4"
    LDM_PASSWORD = "gast4+"
    #LDM_DIREKTX = True