In DX4WIN, I choose LPT3 for CW keying in preferences. That's the only choice. I SAVE changes and Exit. It doesn't work. Every time I go back into preferences, it has reverted to NONE. This is a new computer. Windows 10. Any help appreciated. 73 John W9RPM -- EMAIL: john at w9rpm.com WEBPAGE: http://www.w9rpm.com/ DX CLUB: http://www.tcdxa.org/