I was trying Ubuntu12.04 with the Trinity desktop but neither Arduino or Energia will run. They just crash when clicked on menu entry. Tried starting from a normal user commandline to see what happens, they just go straight to kcrash. Started by root from a commandline they work. I presume something must need permissions changed but what?

There is no way in Trinity to check users and groups. The normal option in Control Center is not included.

My other old installation of PCLinuxOS runs them correctly BUT I cannot get them to use other than the original libraries. Where do I install any other library I want to add to support sensors/displays?