Break it down to a simple stack and try and replicate the error. Chances are you'll isolate the problem. If not, post the simple stack and I or someone else can take a look at it. On Thu, Oct 28, 2010 at 7:06 PM, Terry Judd <tsj at unimelb.edu.au> wrote: > I¹ve got something weird going on where after creating a series of objects > by script