@Karel said:
It could be a problem in Kontakt or both Kontakt and VE Pro. Disabling the memory server definitely seems to solve it. Kontakt 4.1 comes in a 64bit flavour, so there shouldn't be a pressing need to use the memory server there anyway.
Update: I just added the Wallander Instruments Pro Edition Brass + 1 Altiverb Instance. The Dropout phenomenon came back !No Crash so far.
Memory usage 20 - 25 % and the VSL Ensemble Pro shows me 108 % CPU , 96 Threads, Physical mem = 2.15 GB, Virt. mem = 3.47 GB
Hope that helps.
D