midi editing using key editor

Hi All,

I’m new to Cubase and to music production so dont laugh if its a stupid question :slight_smile:

I have a weird problem in Cubase 5 (version5.1.0), when editing midi using the key editor there is no sound when i click the on screen piano, when i click to paint the midi i hear the sound, is there something i hve clicked by mistake? it was working fine before, i have tried to connect an external midi (which didnt work at the end) maybe ichanged something?

(Please see attached screenshot)

is there a restore factory seeings button?