Andy Piper <andy(a)xemacs.org&gt; writes: Sorry, that patch appears to have no effect at all on my situation -- the newly-compiled XEmacs I'm now using for Gnus is up to 73 children, and counting. xwininfo: Window id: 0x4c00029 "emacs: *Summary nnml:list.xemacs*" Root window id: 0x26 (the root window) (has no name) Parent window id: 0x1804d0e (has no name) 1 child: 0x4c0002a (has no name): () 1267x976+0+0 +5+21 73 children: 0x4c001f8 (has no name): () 15x661+1248+287 +1253+308 0x4c00172 (has no name): () 15x188+1248+85 +1253+106 0x4c00a3c (has no name): () 481x15+4+258 +9+279 0x4c00489 (has no name): () 15x173+485+85 +490+106 0x4c00492 (has no name): () 15x661+485+287 +490+308 0x4c03ab6 (has no name): () 80x18+0+0 +5+21 ... It doesn't seem to have any effect on the minimalist case of repeated "C-x 2 C-x 0", either.