Check your clock source. Make sure there set correctly ----- Original Message ----- From: Roger Baccus To: ddots-l@xxxxxxxxxxxxx Sent: Sunday, February 19, 2012 12:31 PM Subject: [ddots-l] MOTU 8Pre loud, crackling, intermittent Noise! I am using MOTU 8Pre and get loud, crackling sounds every few minutes. I am using Sonar 8.5, JAWS 12 and Windows 7. http://www.rogerbaccus.com