Burg doesn't update correctly [closed]

Question

My installation of Burg works good, aside from the fact that the OS-prober fails to recognize Kubuntu.

The partition table is as follow:

   ### BEGIN /etc/burg.d/10_linux_proxy ###
menuentry "Ubuntu with 2.6.32-29" --class ubuntu --class gnu-linux --class gnu --class os --group group_main {
    insmod reiserfs
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set f56336fc-da02-4abc-9380-21a7169a8fd0
    echo    'Loading Linux 2.6.32-29-generic-pae ...'
    linux   /boot/vmlinuz-2.6.32-29-generic-pae root=UUID=f56336fc-da02-4abc-9380-21a7169a8fd0 ro  quiet splash
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-2.6.32-29-generic-pae
}
menuentry "Ubuntu with 2.6.32-29 (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os --group group_main {
    insmod reiserfs
    set root='(hd1,1)'
    search --no-floppy --fs-uuid --set f56336fc-da02-4abc-9380-21a7169a8fd0
    echo    'Loading Linux 2.6.32-29-generic-pae ...'
    linux   /boot/vmlinuz-2.6.32-29-generic-pae root=UUID=f56336fc-da02-4abc-9380-21a7169a8fd0 ro single 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-2.6.32-29-generic-pae
}
### END /etc/burg.d/10_linux_proxy ###

### BEGIN /etc/burg.d/30_os-prober_proxy ###
menuentry "Kubuntu with 2.6.35-28 (on /dev/sda3)" --class ubuntu --class os --group group_/dev/sda3 {
    insmod reiserfs
    set root='(hd0,3)'
    search --no-floppy --fs-uuid --set 96b0046f-2161-474b-97f2-8e8be2eaee5c
    linux /boot/vmlinuz-2.6.35-28-generic-pae root=UUID=96b0046f-2161-474b-97f2-8e8be2eaee5c ro quiet splash
    initrd /boot/initrd.img-2.6.35-28-generic-pae
}
menuentry "Kubuntu with 2.6.35-28 (recovery mode) (on /dev/sda3)" --class ubuntu --class os --group group_/dev/sda3 {
    insmod reiserfs
    set root='(hd0,3)'
    search --no-floppy --fs-uuid --set 96b0046f-2161-474b-97f2-8e8be2eaee5c
    linux /boot/vmlinuz-2.6.35-28-generic-pae root=UUID=96b0046f-2161-474b-97f2-8e8be2eaee5c ro single
    initrd /boot/initrd.img-2.6.35-28-generic-pae
}
menuentry "WinXP (on /dev/sda1)" --class windows --class os {
    insmod ntfs
    set root='(hd0,1)'
    search --no-floppy --fs-uuid --set 1ef067aaf067873d
    drivemap -s (hd0) ${root}
    chainloader +1
}
menuentry "Mac OS X (on /dev/sda2)" --class macosx --class os {
    insmod hfsplus
    set root='(hd0,2)'
    search --no-floppy --fs-uuid --set dbd8d76ff64d3d80
        insmod vbe
        set do_resume=0
        if [ /var/vm/sleepimage -nt10 / ]; then
           if xnu_resume /var/vm/sleepimage; then
             set do_resume=1
           fi
        fi
        if [ $do_resume == 0 ]; then
           xnu_uuid dbd8d76ff64d3d80 uuid
           if [ -f /Extra/DSDT.aml ]; then
              acpi -e /Extra/DSDT.aml
           fi
           xnu_kernel /mach_kernel boot-uuid=${uuid} rd=*uuid
           if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
              xnu_mkext /System/Library/Extensions.mkext
           else
              xnu_kextdir /System/Library/Extensions
           fi
           if [ -f /Extra/Extensions.mkext ]; then
              xnu_mkext /Extra/Extensions.mkext
           fi
           if [ -d /Extra/Extensions ]; then
              xnu_kextdir /Extra/Extensions
           fi
           if [ -f /Extra/devprop.bin ]; then
              xnu_devprop_load /Extra/devprop.bin
           fi
           if [ -f /Extra/splash.jpg ]; then
              insmod jpeg
              xnu_splash /Extra/splash.jpg
           fi
           if [ -f /Extra/splash.png ]; then
              insmod png
              xnu_splash /Extra/splash.png
           fi
           if [ -f /Extra/splash.tga ]; then
              insmod tga
              xnu_splash /Extra/splash.tga
           fi
        fi
}
### END /etc/burg.d/30_os-prober_proxy ###

So it happens that Burg does recognize all the OSes but, instead of display

1. Ubuntu
2. Ubuntu (recovery mode)
3. Kubuntu
4. Kubuntu (recovery mode)
5. WinXP
6. Mac OS X

it displays

1. Ubuntu
2. Ubuntu (recovery mode)
3. Ubuntu
4. Ubuntu (recovery mode)
5. WinXP
6. Mac OS X

Any help will be appreciated.