I am trying to install Prime 3.1 on my new laptop. I already have a license for 3.1 but it is on my old computer. I currently only have the 30 day free trial of 4.0 on my new laptop but that will expire soon and I need to use mathcad files on after that expiration date. I am having difficulty downloading 3.1 on my new laptop.
Also, I tried to activate my 3.1 license on the 4.0 version, but it ended up just locking half of the features. I need availability to all the features. I really do not care if it is the 3.1 version or 4.0 version. Please help.