ok I have uploaded the new shiny versions of CNCdriver (1.02) and the sketch (v1.4)
they are in the same place as before:
http://www.mmcpix.com/CNC/CNCdriver.zip
http://www.mmcpix.com/CNC/GCode_Interpreter.zip
You will notice that I have increased the number of settings in Tools :: Options
I found that I can get twice the speed by setting the
Timers :: Timer to 10mS
It also remembers the sizes and poistions of the forms as well as the panel sizes on the main form
let me know how you get on