I have a GTK program using twisted 2.1.0 and python 2.4. On both Linux and Windows the program reliably fails to terminate after calling gtk.main_quit() and reactor.stop(). It just sits there. All the windows close, but the process remains running. It will terminate happily if the program has merely been run, but if "things" have happened, the program refuses to die. I am guessing that this is because there are deferreds loitering around unfired, or some GTK resources remain that refuse to die. To kill the process after this, it must be sent a KILL signal, TERM is not sufficient. On windows it can be killed in the Task Manager processes tab. I admit I am at a loss as to how to debug this - can someone give me some pointers to diagnostics I can try to find out what the problem is? Cheers, Doug. -- doug@isotoma.com / Isotoma, Open Source Software Consulting Tel: 020 7620 1446 / Mobile: 07879 423002 / Fax: 020 79006980 Skype: dougwinter / http://www.isotoma.com Lincoln House, 75 Westminster Bridge Road, London, SE1 7HS