I always thought it would turn on automatically when you hit play. other than that, try using the menu option instead of the hot key? or, re-boot sonar? ----- Original Message ----- From: Omar Binno To: ddots-l@xxxxxxxxxxxxx Sent: Thursday, May 17, 2007 11:49 AM Subject: [ddots-l] audio engine not turning on Hi, I'm using sfz in a sonar project, and for some reason, the audio engine won't turn on. I'm hitting alt z, and it keeps saying that the audio engine is turned off, but it won't turn it on. Any ideas? Thanks. Omar Binno My Space: www.myspace.com/omarbinno