Hi everyone, I figured this out on kubuntu, but the same is true for MEPIS:
While using MEPIS and now kubuntu I used synaptic to download the restricted NVidia driver. After restarting X I was kicked back to the command line. I starting searching and found on the Ubuntu help site this link:
https://help.ubuntu.com/community/Bi...7d5e794c57c9c9
At the bottom of the page it describes that if the nvidia module is loaded even though you get the error you should try to reload and start X again. This worked for me and now my CPU usage is way down. So the issue was I was not using my video card to render Superkaramba widgets.