Install TeXStudio and Dropbox on Ubuntu

1. Install TeXStutio

open terminal, and type in:

sudo add-apt-repository ppa:sunderme/texstudio

(if old version already installed: sudo apt-get remove texstudio-d)

sudo apt-get update

sudo apt-get install texstudio

2. Dropbox (permission issues)

sudo chmod +s /usr/lib/policykit-1/polkit-agent-helper-1

sudo dpkg --configure -a