Ubuntu wont boot!

ok i installed ubuntu in a computer of mine, i went through the whole install process and it asked to restart, i did. then when it restarted it just flashes the ubuntu load screen then just goes black and the mouse and keyboard are not responsive. i have tried the graphics GUI way at this link http://kubuntuforums.net/forums/index.php?topic=3085112.0 and it didn't work. any ideas?

Video Problem?

It sound like a video problem. The post you have tried to follow is 2007 - 3 years old.

Look at "Ubuntu 10.04 “Lucid” Blank Screen at Startup : Workaround" - http://ubuntu-tutorials.com/2010/05/06/ubuntu-10-04-lucid-blank-screen-a...

The most generic to work is xforcevesa. Try to edit your Grub to include this command.