I am running windows xp on my ez router plasma cutter with mach 3, and i have windows xp on the office computer where i make my drawing files and do my interneting. Now that their dropping support for xp do i need to replace both computers or just the one in the office that runs sheetcam? I bought them new 5 years ago. I was hoping the one with mach 3 that ran the table could stay setup as is because it's not hooked to the internet. I remember when I set these up they said to use xp and stay away from windows seven when running sheetcam. Are the newer operating systems ok to run sheetcam? THANKS,,,,,,,CURLY