That sounds like the one Frank, can't say for sure though until my Laptop is finished rendering.

From memory what I can say is that it is a drop down menu item with 3 options, and it is in the bottom right of a page. I think the effects page but from what I just said above I'm sure you can verify this exactly.

I have disabled this feature altogether and the problem went away. It's a bug for sure so I will send a report along with my files over to e-on in the morning. I'll have to leave my laptop on all night rendering.

Kind Regards
James