Yes the Quad works outside of Sonar with no issue. The Quad does work inside of Sonar but only in WDM driver mode. ASIO driver mode is where the issue occurs.
I have the same device settings.
I can't say that I wouldn't upgrade my Sonar version but I'm not sure that will solve my problem. To avoid running multiple version on the same PC (and any issues that may introduce), I'm going to install X1d on a second machine and see if I have the same issue.
Thanks very much for the suggestions!