With integrated graphics, you should try disabling Compiz desktop effects (I think Ubuntu enables them by default.) You can do this from one of the Preference menus or simply press Alt+F2 and type "metacity --replace" (without the quotes).
Originally Posted by Owndapwn
EDIT:: LXDE download links are broken.
I don't understand. In Ubuntu, you don't install LXDE by clicking on a link, but rather by using the Ubuntu Software Center or terminal commands such as "sudo apt-get install lxde".