Hello Joe!
Nice to hear from you!
Thanks for your answer - I now use Soundflower and Ladiocast and it works pretty fine.
But there is one more thing: Is there any possibility to get my computer audio (iTunes or audios in a keynote presentation) to the other participants? I CAN route my output channels via Soundflower to GoToMeeting, but it seems to suppress the signal (maybe some AI that detects it as not being a "voice").
Any idea?