Thanks, Hugh. I was able to get the library to load in Kontakt Player 5 as a standalone, but whenever I open a score in Sibelius, kontakt still doesn't automatically load the sounds. I can manually drag the instruments into kontakt and get them to playback in Sibelius, but I don't think that's a good workaround in this case. I'll hit up Jim and Murray, but I just didn't know if this is something you've seen before.