Not sure if this has already been reported or not....
I'm running Vienna Ensemble (not Pro) v4.1.7553 as a plug-in in Logic 9.1.3 (32-bit)
When I open a Logic song, VE opens and the mixer is shown. However, only when I click on one of the VI Pro instances, then the sample loading begins (of all currently "loaded" instances).
Is this a (known) bug?