Here are some responses to those ideas:
I shut it down every day...
I seem to be up t date with Dynamic Components
Up to date with Sketchup.
As soon as I've edited any window or door (after pressing submit), the entity info freezes the window that was edited. I can actually keep working for a while, but the entity info window won't respond. Any attempt to edit another door or window will result in the dialogue trying to come up, but not getting there. I usually close it after a while. Eventually Sketch Up will crash. I can redefine windows, or delete them, or make new ones with no problem. It's just the editing part that causes problems, and the same with the handrail.