You may also want to consider adding the command "xhost +"
I know to launch my SmartCoin on the Prefinal from ssh I have to run the following
DISPLAY=:0 xhost +
DISPLAY=:0 sudo smartcoin
Otherwise SmartCoin will error
There is a more secure way to do this i can't remember off the top of my head but please note doing this compromises the security of your build. I will update the wiki on this

On a side note has anyone noticed the ssh is a lot faster now
