I am having issues with my software.
At the top of the screen it says demo issue. Is that because I have not licensed it yet?

I am having issues with my software.
At the top of the screen it says demo issue. Is that because I have not licensed it yet?

That is correct.

You can purchase the license from here; https://www.machsupport.com/shop/mach3/
(Please be aware that Mach3 is now an obsolescent product and has been supreceeded by Mach4).

What issues are you having ?