[/quote]
Do check that you have the latest graphics drivers installed. Quite often the problem can simply be with the drivers so it's worth trying.
https://www.geforce.com/drivers[/quote]
I updated the graphics drivers yesterday and that actually solved another issue. After the driver update I am able to use the GPU for Iray rendering (and before that only the CPU).
I've now discovered that I can use some "older" or "simpler" particle effects, such as those under "Legacy" or "Water Hose" from PopcornFX Library 40. When I try to use stuff from "PopcornFX Learning Samples" and "PopcornFX Super Tools" my iClone 7 crashes by as little as moving just one frame forward on the timeline.