This bug report will be sent to the XEmacs Development Team, not to your local site managers!! Please write in English, because the XEmacs maintainers do not have translators to read other languages for them. In XEmacs 21.2 (beta36) "Notus" [Lucid] (i686-pc-linux) of Wed Nov 8 2000 on lanning configured using `configure --prefix=/usr --with-file-coding' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: I updated from CVS this morning and built a new XEmacs. When I started the new image and attempted to run VM by pressing the "Mail" icon on the toolbar, an error was signaled. Recent keystrokes: misc-user misc-user button1 button1up misc-user Recent messages (most recent first): Loading mail-abbrevs... Loading emacsbug...done Loading emacsbug... Entering debugger... Loading debug...done Loading debug... Loading vm-motion...done Loading vm-motion... Sorting... done Sorting... Lisp Backtrace: Signaling: (error "Must be string or vector" #<x-frame "emacs" 0x515d>) check-valid-instantiator(#<x-frame "emacs" 0x515d> image) canonicalize-spec(#<x-frame "emacs" 0x515d> image nil) byte-code("..." [spec-list nil result rest noerror throw cann-spec-list t signal error "Invalid list format" canonicalize-spec specifier-type res2] 5) canonicalize-spec-list((#<x-frame "emacs" 0x515d> . [tab-control :descriptor "Buffers" :face buffers-tab :orientation top :pixel-width (gutter-pixel-width) :items nil]) image) set-specifier(#<image-specifier global=<unspecified> fallback=((nil . ...)) 0x32fd> [tab-control :descriptor "Buffers" :face buffers-tab :orientation top :pixel-width (gutter-pixel-width) :items nil] #<x-frame "emacs" 0x515d> nil nil) set-glyph-property(#<glyph (buffer) #<image-specifier global=<unspecified> fallback=(...) 0x32fd>0x32fc> image [tab-control :descriptor "Buffers" :face buffers-tab :orientation top :pixel-width (gutter-pixel-width) :items nil] #<x-frame "emacs" 0x515d> nil nil) set-glyph-image(#<glyph (buffer) #<image-specifier global=<unspecified> fallback=(...) 0x32fd>0x32fc> [tab-control :descriptor "Buffers" :face buffers-tab :orientation top :pixel-width (gutter-pixel-width) :items nil] #<x-frame "emacs" 0x515d>) update-tab-in-gutter(#<x-frame "emacs" 0x515d> t) #<compiled-function (frame) "...(8)" [frame gutter-buffers-tab update-tab-in-gutter t] 3>(#<x-frame "emacs" 0x515d>) make-frame(nil) vm-goto-new-frame(primary-folder folder) apply(vm-goto-new-frame (primary-folder folder)) vm-goto-new-folder-frame-maybe(primary-folder folder) apply(vm-goto-new-folder-frame-maybe (primary-folder folder)) byte-code("..." [first-time totals-blurb folder file full-startup buffer-file-coding-system bufferp nil expand-file-name file-directory-p error "%s is a directory" vm-get-file-buffer t no-conversion message "Reading %s..." find-file-noselect "Reading %s... done" set-buffer-multibyte get-coding-system no-conversion-unix no-conversion-dos no-conversion-mac binary buffer-modified-p ((set-buffer-modified-p omodified)) encode-coding-region set-buffer-file-coding-system decode-coding-region coding-system-base ((set-buffer-modified-p omodified)) vm-check-for-killed-summary vm-check-for-killed-presentation 0 vm-mode file-newer-than-file-p make-auto-save-file-name default-value vm-folder-read-only buffer-disable-undo abbrev-mode auto-fill-mode vm-mode-internal vm-read-index-file-maybe vm-assimilate-new-messages vm-gobble-visible-header-variables vm-gobble-bookmark vm-gobble-pop-retrieved vm-gobble-imap-retrieved ...] 7) #<compiled-function (&optional folder read-only) "...(7)" [vm-session-initialization done (byte-code "=c6\n!?=c7=89=89=89=89＠HB=c6\n!=ab=83\n=aa=d9\n=ae=86=c8IC\"=c9!=ab=86=ca=cb\"=aa=c3=cc!=ae=beC=ab=86=c8C!=ae=82J=cd=c7=89=ceQRSTJ=cf=d0\"=88=d1!\n=ae=82I=89KD＠=9a=ac=87KDBD)=cf=d2\"=88-)=89Hq=88L=ab=88U=ab=84=d3=c7!=88V=ab=bf=d4 !=d4=d5!==ac=b6=d4 !=d4=d6!==ac=ad=d4 !=d4=d7!==ac=a4=d4 !=d4=d8!==ac=9b=c7=d9 ME=da=8e=dbed #=88=dc=ce=c7\"=88=dded #=88+L=ab=ad=de !=de=ce!==ac=a4=de !=de=d8!==ac=9b=c7=d9 ME=df=8e=dbed #=88=dc=ce=c7\"=88=dded #=88+=e0 =88=e1 =88=d9 =ac=83=e2WX=e3=?F=ad=8b=d9 ?=ad=86=e4=e5 F\"=89＠=ae=8eY=ae=8a=e6=e7!=ae=85=ad=82E'=ab=97=e8p!=88=e9=e2!=88=ea=e2!=88=eb =88=d9 =ac=84=ec B=ed=c7B?=c7#=88=ab=96B=ac=92=ee =88=ef =88=f0 =88=f1 =88=f2 =88=f3 =88=ab=83=f4 =88=ab=8fA=ab=8b=f5=f6\n=ab=83=f7=aa=81=f8\"=88=ab=a3G=ae=85N=ae=81pO=f9O=89ACA=ae=81=fa=fbD$=88P=ab=83=fc =88)=ab=83=fd =fe =88=ff =88=! 81c