I am back again. I have no sustain PEDAL connected. Also, the panel memory LED's will start flashing one after another in a very quick succession after I downloaded a song but not with a MIDI file.
Just imagine listening to a song with instruments changing in quick succession (whatever is in the panel memory currently) i.e., piano, drums, flute, ....

If you don't know of any virus, I could have an electronic (hardware) problem(s). I hope not. I had this for 9 years and I am the original owner. Well, presently I just enjoy listening to midi files. I hope I can get this fix.