This is a simple widescreen GRUB splash image for Kubuntu. As the resolution of a GRUB splash image needs to be 640x480 (and 14 colours), the Kubuntu sign is shrunk in this image so when it is spread on a widescreen, it looks normal. To have this on your computer, follow these steps:

1) Create a GRUB image directory and move the new image file into it.

sudo mkdir /boot/grub/images

sudo mv $LOCATIONDIR$/WidescreenKubuntuBootSplash.xpm.gz /boot/grub/images

2) Change the GRUB menu file to load the image. Remember to backup first!

sudo cp /boot/grub/menu.lst /boot/grub/menu.lst.old

sudo kwrite /boot/grub/menu.lst

Find the following:

# Pretty colours
#color cyan/blue white/blue

Add there:
splashimage=(hdX,Y)/boot/grub/images/WidescreenKubuntuBootSplash.xpm.gz

NOTE: Replace X and Y with the proper numbers! X in this case is the actual disk drive and Y is the partition. Assuming you have a pretty standard installation of Kubuntu, you could find this information further down in menu.lst. Locate the section which matches the entry you normally boot from:

## ## End Default Options
## title Kubuntu, kernel 2.?.??-?-??
root (hdX,Y)

There you can find the proper numbers to use for your splashimage command. Enter those in the line added before. If you have a separate boot partition, you have to remove the /boot in the path, this is because the root of the boot partition is mounted in /boot on your other partition. Resulting in this section instead:

splashimage=(hdX,Y)/grub/images/WidescreenKubuntuBootSplash.xpm.gz

3) Update GRUB.

sudo update-grub

Restart and voila!