Have you installed Ubuntu 11.10 and want the look of your old desktop back? This tutorial will guide you though installing and switching back to the Ubuntu Classic Desktop (GNOME) in Ubuntu 11.10 Oneiric Ocelot.
When Ubuntu 10.04 LTS (Lucid Lynx) was released in April 2010, you may have noticed the Maximize, Minimize & Close buttons have been moved from right to left corner in the default Desktop Theme. This Ubuntu How-To will guide you though switching position, order and alignment of these buttons back to the right hand-side.
Do you have 8G of RAM installed in your system, but the 32-bit version of Ubuntu Linux is only picking-up 4GB? Here is how to get Ubuntu to recognize more than 4G of memory.