Can you reproduce the problem without any third party plugins? (Example .capx includes "Random Array") - we ask that to ensure it's not a third party plugin causing the problem.
Please also see how to report bugs. What does "going whacky" mean? Having seen a lot of bug reports I reckon there's an 80% chance I open the project and everything works absolutely fine, which means then I have to ask a lot more questions etc. and it takes a lot longer to sort everything out. If you include proper descriptions, steps to reproduce, any browser errors, etc. that should help us get to the bottom of it as quickly as possible!