Hi Paul, My PC is still crashing every 20-30 minutes with the Blue Screen, when using VEP Pro Server 6.0.15864 as slave with Is Win 8.1 Pro, with the MAC Pro running Pro Tools 12.3.1 on OX 10.8.5. I use a dozen instances of Kontakt as it doesn't seem to use more than a few % more of resources in VEP and the PC itself, compared to one instance of Kontakt and many outputs; easier to control. I have Memory anagement errors, and many more. We performed the thorough Mem Test on the PC with perfect results. The crashes were often, but somewhat less frequent on VEP 5. We had upgraded to Ver. 6 last week to actually reduce crashes, but it became worse. We stayed on version 6.0.15864 because it is compatible with the MAC OS 10.8.5. The dozen different errros range throughout many areas of the computer. The info on the last crash, this morning, could not be obtained using Task Manager, as it was no longer visible to me. I am not a computer guru, by the way. I have a general knowledge. Is there a location with the crash files so you can analyze them? I'll email you the project file, as you have requested. We checked all drivers, and they seem up to date, yet only with this VEP and Kontakt combo we see errors, just as with the memory erros, yet the memory is fine. A year ago with VEP 5, using only VI sounds, we had a crash a day, and it was tolerable, if that info helps. My IT people (ADK Media) and I are about to upgrade to Win 10 Pro to see if this will help. If you, or anyone, can offer any assistance, I'd be grateful, as we basically cannot work. Thanks, Gordon