Code:
sudo update-grub

Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... found: (hd0,4)/boot/SE-Glass-Grub.xpm.gz

Found kernel: /boot/vmlinuz-2.6.24-18-generic
Found kernel: /boot/vmlinuz-2.6.24-17-generic
Found kernel: /boot/vmlinuz-2.6.24-16-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... don
but when i reboot it says failed to load splashimage