Thanks for your suggestion!
I am selecting random pointers to chase and getting this in almost all of the results:
globals: Environment declarations: IdentityDictionary #ActiveWorld -> PasteUpMorph submorphs: Array 6: PluggableSystemWindow (3168378) submorphs: Array 3: PluggableTreeMorph (1993854) scroller: TransformMorph (3408406) submorphs: Array 3: IndentingListItemMorph (2996756) complexContents: PointerExplorerWrapper item: Association value: Array
... and the last entry in the list is an object that is a subclass of the HWEntity class, like:
22392: HWGround.
Does this mean that my objects are being held onto by user interface objects? My UI elements are no longer being displayed so I don't know how this can be the case.
Thanks again!
Chris