Cubase LE5 and Ezdrummer Drag and Drop

I load the instrument track (EZDRUMMER), and drag a beat over and it always creates another MIDI track. I then have to move that beat by dragging it up to my instrument track. It does this for every beat I add. Once I move it up then it works just fine. I’m sure there is a setting somewhere about create new track but where is it?

It is an XP system. Cheers L250