yoshiki, you made a change of 2000-11-07 to event-stream.c, commented: * event-stream.c (execute_command_event): Preserve current_events and the like when event is misc-user-event. Inhibit quit during the call to maybe_echo_keys. My patch "Fix C-x ＠ h <scrollbar-drag> a crash", <87ofzthdgr.fsf(a)sodan.org&gt; unfortunately, this causes problems because [this-command-keys] returns bogus values after a misc-user-event. to see the problem, do Help->About XEmacs... and click on any of the hyperlinks with button1. part of your change looks like this: /* Emacs 18 doesn't unconditionally clear the echoed keystrokes, so we don't either */ - reset_this_command_keys (make_console (con), 0); + if (XEVENT (event)->event_type != misc_user_event) + reset_this_command_keys (make_console (con), 0); commenting this out fixes the problem. however, i have absolutely no idea if this interferes with the original patch. yoshiki, it's *extremely* important when you modify code as subtle as the event-stream code that you comment exactly why you did it. instead, your only comment is - reset_current_events (command_builder); + /* To fix C-x ＠ h <scrollbar-drag> x crash. */ + if (XEVENT (event)->event_type != misc_user_event) + reset_current_events (command_builder); which gives no information as to why you added this check. could you please explain what's going on here? -- ben I'm sometimes slow in getting around to reading my mail, so if you want to reach me faster, call 520-661-6661. See http://www.666.com/ben/chronic-pain/ for the hell I've been through.