License still "Invalid"/"No License" Dear colleague, I applied for 30-days free trial full license of PTC Mathcad Prime 7.0.0.0, and received license through my email. I did following operation: oopen Mathcad, choose "options" setting, choose "license configuration", read the file (in the same harddrive) which sent from PTC Mathcad, click "apply", but license status is still "Invalid", license type is still "No License". Please help me to double check anything was wrong of my operation? Thank you.