I have a WSPR Desktop transmitter PordNo 1012 HW version 1.17 Midrange model. It has been working fine for about a year. But now suddenly if I connect the transmitter to the PC or to a simple 5v loader adapter it starts transmitting on the last used frequency being 40 meters. I am unable to change anything. The screen of the program is graded. Can anyone give me advice what I can do? My age is 80 so nothing is easy nowadays. I can measure the output and I tune the transmitter proper to the antenna. I am grateful for any advice. Pierre de Wee PAØPPW