Thank you for the reply mason. I checked the packages through the Synaptic
Package Manager and noticed "trisquel" was not installed and configured,
although "trisquel-recommended" was.
I added the "trisquel" package and noticed it did make some changes to my
Panel, but it did not resolve the Power Off/Restart etc functionality.
I did notice there was a seemingly odd mix of packages installed. I have
attached the screenshots here of trisquel related packages to see if it is
configured in an odd way.
Thank you for your time and effort in your response.