Problems with Virtual Keyboard

When recording: earlier today I was recording guitar midi using the virtual keyboard - using the letter function, not the one that looks like a piano - and it went fine. I could play QWERTYUIO and the numbers above. But then I went back to do this and only the number keys would work. If I pressed the letter keys the keyboard would flash, but no note would get played. Is there some way I can get back the full range of keys and how can I avoid this in the future?


What language do you use?

Do you mean the leters don’t send the MIDI signal?

I figured it out. LOL. I had CAPS LOCK on.