Bug#2007: dialog segfault
I was trying things out with dialog, and managed to produce a
chiark:~> dialog --menu "`cat /etc/group`" 14 80 3 upgrade u remove r 'on hold' h
[ screen switches to alternative page for full-screen display ]
It also did something funny to xterm's handling of the mouse, which
none of `tput rs1', `tput rs2', `tput rs3', `reset', `nvi' or the `do
full reset' option from the xterm menu were able to fix. I'm
reporting that as a separate bug.