Quote Originally Posted by Tenson View Post
Why is it hard to run Mach3 on a laptop with parallel port built in? It would surely be the same as running it on a PC as I am now?
It's all to do with the Battery and energy saving etc built into the PC. Go to Artsoft site and check it out and you'll see they state NOT to use a Laptop.

Some people use laptops successfully but most have troubles and instabiltys.