I'm using GPO with PT 7.1 and Mac OS 10.4. I've instantiated GPO, and have loaded DBL Bass KS Solo. However, it seems to be transposing down 1/2 step from what I'm actually playing (from E to Eb). My controller isn't set to transpose. In fact, if I look at the MIDI events, it showing "E". If I un-instantiate GPO, and re-instantiate it it's still the same. What am I doing wrong?