Debugger entered--Lisp error: (arith-error) read-event() byte-code("Æ ‰‰¢)Ç=„¢È>…Ä¢É>„\nÊ ˆ)‰:ƒ9Ë8:ƒ3˂4Ì8‚?Í `ÎÏF)‰Ð 8†Z A@:ƒW A@@‚Z A@)‰§ƒf\f‰@)=ƒ†Ñ!ƒ†Ò$ˆ‚Ó AA‰ƒÀWƒ©ÔZ$ˆ‚ÀYƒÀÔZT$ˆ)‚‡" [event object automatic-hscrolling-saved automatic-hscrolling end position read-event mouse-movement (switch-frame select-window) (switch-frame select-window) redisplay 2 1 selected-window (0 . 0) 0 5 integer-or-marker-p mouse-move-drag-overlay mouse-position mouse-scroll-subr end-point last-end-point start-window mouse-drag-overlay start-point click-count mouse-row top bottom] 6) (track-mouse (byte-code "Æ ‰‰¢)Ç=„¢È>…Ä¢É>„\nÊ ˆ)‰:ƒ9Ë8:ƒ3˂4Ì8‚?Í `ÎÏF)‰Ð 8†Z A@:ƒW A@@‚Z A@)‰§ƒf\f‰@)=ƒ†Ñ!ƒ†Ò$ˆ‚Ó AA‰ƒÀWƒ©ÔZ$ˆ‚ÀYƒÀÔZT$ˆ)‚‡" [event object automatic-hscrolling-saved automatic-hscrolling end position read-event mouse-movement ... ... redisplay 2 1 selected-window ... 0 5 integer-or-marker-p mouse-move-drag-overlay mouse-position mouse-scroll-subr end-point last-end-point start-window mouse-drag-overlay start-point click-count mouse-row top bottom] 6)) (lambda nil (track-mouse (byte-code "Æ ‰‰¢)Ç=„¢È>…Ä¢É>„\nÊ ˆ)‰:ƒ9Ë8:ƒ3˂4Ì8‚?Í `ÎÏF)‰Ð 8†Z A@:ƒW A@@‚Z A@)‰§ƒf\f‰@)=ƒ†Ñ!ƒ†Ò$ˆ‚Ó AA‰ƒÀWƒ©ÔZ$ˆ‚ÀYƒÀÔZT$ˆ)‚‡" [event object automatic-hscrolling-saved automatic-hscrolling end position read-event mouse-movement ... ... redisplay 2 1 selected-window ... 0 5 integer-or-marker-p mouse-move-drag-overlay mouse-position mouse-scroll-subr end-point last-end-point start-window mouse-drag-overlay start-point click-count mouse-row top bottom] 6)))() mouse-drag-track((down-mouse-1 (# 189 (173 . 310) 2128840 nil 189 (24 . 6) nil (4 . 2) (0 . 0))) t) mouse-drag-region((down-mouse-1 (# 189 (173 . 310) 2128840 nil 189 (24 . 6) nil (4 . 2) (0 . 0)))) call-interactively(mouse-drag-region nil nil)