Linux is not working?

when I boot up my ubuntu computer it takes me to GNU GRUB and shows me ubuntu boot and the recovery mode here is a pic a href="http://bit.ly/kS8ibq" rel="nofollow"http://bit.ly/kS8ibq/a (it deviantart) anyway when i click on any of them this is what happens a href="http://bit.ly/mcX6Mi" rel="nofollow"http://bit.ly/mcX6Mi/a HELP!!! PLEASE!!!