After using Mach3 for around 15 years, i recently updated my cnc pc and now running windows 7, parallel port, all updated and runs perfectly (with the 'normal' reg edits to keep the port driver talking to the port..).

Came across the Dark Screen set during sorting the new pc, absolutely brilliant, love it!!. The only tiny mods i've done is changing the function of the 'Goto Zero' button so it functions the same as the std screen set ie, lifts Z out of the work first, then zero's X, Y, A etc. The Dark screen only zero's X and Y and if the the tool is in a pocket...it doesn't end well lol. Also added a 'Regen Toolpath' button which is useful on the main screen rather than finding it in a drop down menu. Last but not least, deleted the 'Dark Screen 1.01 Designer Graphicer82' image/link lower left... only because clicking on it caused mach3 to crash!. I put the Mach3 blue logo there instead to fill the space