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Virtalbox

Ubuntu 14.04 - Virtualbox 4.3.18 - Slow/glitchy mouse

Check unity support:

/usr/lib/nux/unity_support_test -p

In my case i got “NO” for “Not software rendered”.

Make sure you have installed following packages:

sudo apt-get install build-essential dkms

Check kernel:

uname -r ### to check if "generic" "server" or "pae"

Install additional packages depending on your kernel (in my case itwas already there for some reason)

• generic-pae

  apt-get install linux-headers-generic-pae

• generic

  apt-get install linux-headers-generic

• server

  apt-get install linux-headers-server

Install Guest Additions (Devices → Insert Guest Additions):

sudo sh ./VBoxLinuxAdditions.run