Gunnar Evermann <ge204(a)eng.cam.ac.uk&gt; writes: OK, for one second :-) This soooo stupid.. The thing is called HAVE_SESSION in 21.1.x. I could have sworn that change was between 20.4 and 21 nut it was not.. I don't pretend to grok it fully either. Here is my "guesswork" on which the patch is based. The problem here is that the HAVE_SESSION/HAVE_WMCOMMAND works by making the shell window invisible and keeping a single one. It then creates a new window to wrap each frame. Each of these gets a copy of the arguments of the shell window. Thus in this case we must NOT add the offset from the shell and the frame together because then we count the initial offset twice. However if HAVE_SESSION/HAVE_WMCOMMAND is not set then the offset is only contained on the shell-window and we must copy it from there. Change the HAVE_WMCOMMAND to HAVE_SESSION. It works for me... $＠$＠#! The dumping patch was intentionally changed to ONLY affect Irix 6.x. This under the assumption that we wouldn't want to break Irix5 which worked with Alexandre Oliva's patch. You are saying that isn't the case :-(? Jan P.S. Did you see that one of the latest incoming bugs contains a reproduction recipe for a D&D crash (maybe similar to the one that has been bugging us all the time).