#####Enter following command to disable auto open nautilus window after mount Terminal Command:
gsettings set org.gnome.desktop.media-handling automount-open false
#####Enter following command in terminal to disable overlay scrollbar Terminal Command:
gsettings set com.canonical.desktop.interface scrollbar-mode normal
#####If you want to get back overlay bars, enter following command: Terminal Command:
gsettings reset com.canonical.desktop.interface scrollbar-mode
#####To remove white dots, enter following commands in Terminal: Terminal Commands:
sudo su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-grid false;exit```
#####To remove guest account open Terminal and enter following command:
Terminal Command:
```echo allow-guest=false | sudo tee -a /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf```
#####Change Ubuntu Logo on LightDM
Change file logo.png
/usr/share/unity-greeter/
####Fix Rhythmbox
```sudo apt-get install ubuntu-restricted-extras```
Install aptitude :
```sudo apt-get install aptitude
sudo aptitude install gstreamer0.10-ffmpeg gstreamer0.10-plugins-ugly gstreamer0.10-plugins-ugly-multiverse gstreamer0.10-plugins-bad gstreamer0.10-plugins-bad-multiverse```