My first question would be what sound card and driver are you using? And what are your latency and audio buffers set to?

If the sound card is less than optimal and the driver isn't designed for the kind of music we do.... you will have problems similar to what you are describing.

I've seen this issue before in the Sonar forums. In fact, it's a very common "new user" problem caused by using factory sound cards and MME drivers.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.