Problem With Sun virtualbox in Ubuntu 8.10

Error : No suitable module for running kernel found

Installing linux-headers-`uname -r`

1) Open the terminal (we will be using it through most of my guide) from Applications > Accessories > Terminal

sudo apt-get install linux-headers-`uname -r`

( This packet is not installed by default when kernel install so we have to install this packet manually )

2)

sudo /etc/init.d/vboxdrv setup

Now it is working :)