Is it possible to use sounds from both kontakt gold and jabb together in sibelius? I have been using jabb sounds via GPO studio to hear the arrangements I write in Sibelius 4. If I go to the mixer in Sibelius and try to load a kontakt gold sound the system starts to load the patch then freezes. In fact just opening Sibelius and trying to load kontakt gold sounds now causes the program to freeze even if I haven't opened GPO studio.