I had Oolite 1.80 installed in Linux Mint 17 but performance was so bad that I finally un-installed Oolite and decided to just play the game from a different (lighter) distro. i.e. Lubuntu; installed on a separate partition.
Then I discovered that Mint was using the wrong GPU driver so I want to re-install Oolite again but I just can't get it to install. What am I doing wrong?
The method I use to install Oolite is by simply double clicking on the link to the oolite-1.80.linux-x86_64.run shell script as I have always done but nothing happens when I do.
I have also right clicked on the link and selected 'Execute' the results are the same. I really want to get it installed so that I can test my theory, that the wrong GPU driver was causing the performance hit.
Any help or advice would be greatly appreciated.
By the way, I'm using the Xfce desktop environment if that makes a difference.

Thank you in advance.
CK