How did you install these? All I know is there are three ways to install things: apt-get, add-remove, and synaptic. And I have only used add-remove in windows.X sensors do not work for me (it is some sort of a strange bug, many people have it). I installed command line lm-sensors and also nvidia x-server settings.
I know you and I got machines about the same time, so I feel that there is a high probablity that if X sensors do not work for you, they will not work for me.
I haven't tried anything yet. I thought there was something already installed on the machine, and I only needed to know where.