Gnome Preferred Applications

GUI to set gnome preferred applications

gnome-default-applications-properties

Compiz on start-up to fixing slow GTK menus

To start compiz on KDE start and fix slow GTK menus when there are two screens (with --only-current-screen option)

In ~/.kde/Autostart create compiz.desktop, which contains:

[Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=compiz.desktop
Exec=__GL_YIELD="NOTHING" compiz --replace --only-current-screen --indirect-rendering
StartupNotify=false
Type=Application
X-KDE-Autostart-after=kdesktop

USB Permissions for Virtualbox

Edit:
sudo nano /etc/udev/rules.d/40-permissions.rules

Change:
# USB devices
SUBSYSTEM=="usb_device", MODE="664"

To:

SUBSYSTEM=="usb_device", MODE="666"

from http://ubuntuforums.org/archive/index.php/t-393582.html

Nvidia Settings

nvidia-settings to set TV overscan and contrast.

ipv6

To turn off ipv6

in /etc/modprobe.d/aliases

change:
alias net-pf-10 ipv6

to:
alias net-pf-10 off