Hmm, When you installed Reaper it must be making some modifications to the registry that Sonar didn't like as part of the Reaper uninstall program. Then, when you reinstall Reaper, everything is ok again. Regards, Phil Muir P J Muir Productions Music and audio production URL: www.philmuir.com/ ----- Original Message ----- From: Cameron To: ddots-l@xxxxxxxxxxxxx Sent: Sunday, August 06, 2006 6:54 PM Subject: [ddots-l] figured out the Sonar error! Hi. I figured it out. Oh my god. After all that, I finally figured out what was causing it, although I'm not sure why. After two days of fighting with this, I uninstalled reaper and as soon as I did that, Sonar ran fine. I don't know why but that's what did it. Thanks, Cameron.