need a computer drum machine thingy

well, im working on putting together some rough tracks of me and a buddy that are working on putting a band together, and so far its just me and him playing guitar…i wanna mess around with a digital drum thing on here. im using cakewalk home studio, and there is a “session drummer” in it, but when i try to use it no sound is made…

so im looking for a way to add a fake drum track to this. can anyone help me out?