Hi Phyllis, With the suggestion of Richard Nolde, I decided to do a day of work in Cinerella with heaptrack enabled in the background. It was a pleasant surprise how well it performed. (And no crashes ;) And I am also surprised how functional Heaptrack itself has been designed, I'll forward this application to my peers. To screenshot attached. If anyone is intested in my heaptrack file, I can obviously make it available. But I would really recommend adding this tool to your toolbelt! -- Stefan