Andy Piper <andyp(a)bea.com&gt; wrote: Yes, see below. Some details: when starting xemacs --vanilla, the crash does not happen. 2 things must be done after that to crash: 1. M-x display-time 2. Turn toolbar off (I did it using the menu). Then, if I make the XEmacs' window height very small (less than required for menu+perhaps the modeline), it crashes. Here is the backtrace: (gdb) backtrace #0 0x450762 in assert_failed () #1 0x5a89ff in redisplay_output_pixmap () #2 0x492cb9 in mswindows_output_string () #3 0x493f30 in mswindows_output_display_block () #4 0x5a7c3d in redisplay_output_display_block () #5 0x5a661c in output_display_line () #6 0x5aad0c in redisplay_output_window () #7 0x59a5a7 in redisplay_window () #8 0x59ac5c in redisplay_frame () #9 0x59b0e2 in redisplay_device () #10 0x59b7ba in redisplay_without_hooks () #11 0x59ba66 in redisplay () #12 0x4823e1 in mswindows_wnd_proc＠16 () #13 0x77e148dc in libkernel32_a_iname () #14 0x77e157ef in libkernel32_a_iname () #15 0x77e15eec in libkernel32_a_iname () #16 0x77e15b59 in libkernel32_a_iname () #17 0x77e148dc in libkernel32_a_iname () #18 0x77e163fb in libkernel32_a_iname () #19 0x77e174fa in libkernel32_a_iname () #20 0x77f9f04b in ?? () #21 0x77e15b59 in libkernel32_a_iname () #22 0x77e148dc in libkernel32_a_iname () #23 0x77e163fb in libkernel32_a_iname () #24 0x77e1643d in libkernel32_a_iname () #25 0x77f9f04b in ?? () #26 0x77e15b59 in libkernel32_a_iname () #27 0x77e148dc in libkernel32_a_iname () #28 0x77e14aa7 in libkernel32_a_iname () #29 0x77e266fd in libkernel32_a_iname () #30 0x47f99e in mswindows_need_event () #31 0x484ba0 in emacs_mswindows_next_event () #32 0x4db05f in event_stream_next_event () #33 0x4ddac4 in next_event_internal () #34 0x4de138 in Fnext_event () #35 0x4290ff in Fcommand_loop_1 () #36 0x428f07 in command_loop_1 () #37 0x4551f2 in condition_case_1 () #38 0x428824 in command_loop_3 () #39 0x42884b in command_loop_2 () #40 0x454ce8 in internal_catch () #41 0x428a88 in initial_command_loop () #42 0x44e346 in xemacs_21_2_b43_i686_pc_cygwin () #43 0x44f66a in main () #44 0x610038c5 in _size_of_stack_reserve__ () #45 0x61003aad in _size_of_stack_reserve__ () #46 0x61003aec in _size_of_stack_reserve__ () #47 0x6ec727 in cygwin_crt0 () -- Cheers, -Dima.