Unity 3 multitask - Audio error

I have looping music in the background of my game. If I press home on an iOS4 device and then open the app again the music has stopped and the xcode console shows this: ‘Error initializing AudioSession(errNO:1768843636)’
Bug/fixable?

I’m getting that too - and the weird part is that I’m an Andy Z too!

In AppController i get this error when i set UnitySetAudioSessionActive(true); (to handle turning the sound back on when there is a device interrupt). If i set bNeedToRestoreIPhoneAudioSession = true; it works for enabling audio again when a device interrupt occurs, but if you put the device to sleep for > 1 minute, it then crashes the entire app.