For Dimensions Im using an adapted blur routine by Andreas Blixt, and I've double checked everything to do with those types of effects. And as it's the first part with the plasmas that Relsoft is having problems with, I'll have to dive further into the code to splat whatever could be causing the MAV. Sorry for that.
But, I am racking my brains as to why there's an memory access violation right at the start, where earlier it was working for Relsoft. As on my PC, it works perfectly.