Failed to create WDM audio thread.

Hi everyone,
I'm having a problem with one song that has 16 tracks of SO Gold. I know this is pushing it for my machine but everything was fine untill I unfroze some tracks and changed the tempo then refroze some tracks because then I got "some plugins are unstable" so I closed and restarted P5 but now everytime I try to restart that song I get "Failed to create WDM audio thread" and when I check my audio settings everything is fine. I even try changing in/out ports but still get the error. I tried reinstalling P5 but no change. My sound card is a Layla 24/96 with current drivers.

Thank you forum,
Scott