Quote Originally Posted by bruce_miranda View Post
I can now confirm that this is definately a problem with the laptop (i know i know - you've been saying this all along).
How have I confirmed this? You know the regular 'tick' that happens every 8-9 seconds is so regular that if I jog for about 4 secs then don't jog for 2 seconds and then jog again I get the tick at the 3rd sec i.e. similar timing to jogging continuously.
This tick does not vanish even with different microstep values.
Have a look in your BIOS for SpeedStep if it is an Intel CPU, that is what is causing the interupt most likely. If you can disable it then do so but be aware that your CPU might default to the lowest speed (mine dropped to 1.2Ghz from 2.4) once you boot back into windows.

Can you go with a desktop Bruce or are you stuck with the laptop like me?

I have to use one because a desktop would be dead in a week or so in the damp atmosphere we live in, at least I can bring the laptop and control enclosure indoors after using my machine.

Hope you get it sorted soon.