You may need to slide the latency slider in ASIO for all (if you are using it)
make sure you have check marked your outputs and inputs in ASIO for all (if you are using it)
 
If you have other sound devices disable them (windows device manager) to simplify things. 
 
Also set ASIO for use in the cakewalk edit => preferences => playback and recording => driver mode, properties dialog box. 
 
restart cakewalk
 
check your audio track inputs