hi every one its Keith iv just purchased the license for mach3 cost £124.53 it comes from a e-mail with attachment I opened the attachment thinking there was a code wrong you don't open it so I sent it to my documents and put it onto a CD then put it onto the computer that runs my machine it well not go onto the internet old computer ,mach have told me to just double-click it and go through the menus to install mach3 .but nothing happens not on the e-mail nor on my documents or the seconed computer !!iv now been told by mach to right click on the fill then click on copy but it just stops highlighted the same with the e-mail attachment and my documents and the computer that im running my machine from ,you should be able to copy and past into mach ,not happening !!right click on copy and it just stops highlighted on both computers ,DOES ANYONE NO HOW TO PUT THE FILL LICENSE INTO MACH3 HELP IM PULLING OUT MY HAIR YOURS KEITH