Hey guys, thanks for your interest.
Hmm.. Icebuster, I've already tried uname and as far as I can see I'm matching a 64 bit computer with a 64 bit version of Ubuntu to a 64 bit Arduino IDE. I
gilshultz, When I installed the IDE I would get some notifications of something failing symlinks? unless I signed In as root, so I did, and the installation would proceed very slowly (10 mins +)but succeed. I' ll clean off IDE and try again without root to get the precise message.