Hi! My name is Julio and I've adopted my late father's nickname: "Don Faso" . He was a humble man with a big, noble heart and appreciated by everybody all over the city. In Puerto Rico where I come from, as well as in other Hispanic countries, the title "Don" is for a very respectable mature person of any social class. We don't follow the Italian meaning of it. I am disabled with traumatic brain injury after being a teacher in P. R. and the U.S. for 18 years. I am barely starting with CNC and it's an uphill battle for me because of my limitations. I am commited to doing it to help the family's budget and help me build an R/C flying model in foam of a circular wing airplane I want to test and patent. I need help understanding what the Machsupport website says that for Mach 3 to be supported in a laptop with a parrallel port (that's all I have and can afford) it has to use one of the external controllers in their PLUGINS section. If that's the case, which is the best controller for a Dell Latitude D630? I'll appreciate your help so very much!!!