Help ? ..My notes I write in on the piano roll dont make sounds ?

Im using Sonar producer 8,5.3 .... I write in the notes on the piano roll using addictive drums as my drum software  and if I use the select tool or curser and click on them they make the proper sounds ,,,However on the playback they make no sounds ? ...If I copy the clip and move it into a new application of add. drums in a new midi track  and do the same thing everything works fine ...Ive tried tons of different things and I cant solve the problem in the original track ....The problem is not in my drum software ...it has to be in the piano roll sittings ? I think ?