I cannot get Mathcad 15 to work with my Mathcad Prime License
I can't get the copy of Mathcad 15 that came with my student copy of Mathcad prime to install or run properly. Mathcad prime is installed and appear to be working correctly. When I run the 15 disc it runs smoothly until the license selection page. I have tried both use an existing license and get a new one online with my product code and for both methods the setup fails and crashes. I really need 15 because without it prime is completely worthless since I can't open any sheet any other person has constructed. I need help the directions online and that came with it are terrible. Thanks
Patrick

