"Failed to configure license for PTC Mathcad Prime 3.1: '.', hexadecimal value 0x00, is an invalid character. Line 6, position 1."
This is the error message I always get whenever I try to configure my license for Mathcad 3.1, or any other kind of Mathcad product. I will even put up a random file name and it will give me the same message. Please help