In a spring cleaning of my system, I found out that the DB folder, which I had previously assumed to be of negligible size, had eaten up 2GB of my hard drive! Deleting and zipping simulations cut this down to about 35MB, but still raises an issue. Is there any way to save simulations so they don't take up a huge amount of space? I ask as it strikes me as some part of the original spaghetti code that nobody's been willing to touch for years. (And I won't blame you for avoiding it )