I apologize about potentially asking a dumb question as I'm fairly new. I downloaded GPO Studio and have tried to run it and I get an error that says, "Major Application Fault! Please send your Garritan Studio.log to support@harps.com" I'm wondering if I don't need GPO Studio with Sibelius or if Sibelius is causing problems with it.

Why do I need GPO Studio? What does it do?

I have Sibelius 4.1