Notes display

New to this site. My apology if question and answer have been posted before.

When playing a recorded midi on my keyboard, and using its Score feature, the notes of the tune/melody are being displayed on the screen as well as the chords. As the screen is small, it can only show 2 bars at a time.

But when this midi is played through a pc via a thumb drive, only the chords are shown, and the alphabetical notes (ie A to G) of the tune are being left out. Is there a feature that can be activated to show the alphabetical notes as well.

Thanks,
Shho