Now here is the Most Wanted Tutorial for Ubuntu 11.04 or Ubuntu 11.10 or Linux Mint. This is A-Desk Software which is allow users to apply animations or videos to their Desktop.
To install just follow these simple Steps open Terminal (Press Alt+F2 and type: gnome-terminal -or- Press Ctrl+Alt+T) and copy the following commands in the Terminal:
Now next step is Download A-Desk from here or you can directly Download from here. Extract A-Desk and open Extracted Folder.
Now you will see a file (a-desk.installer) open this file and install.
Next step is Right Click on Desktop and Go to Scripts and select (a-desk), select animation or you want to apply your own.
That's it, Enjoy