If I enter or edit a link with org-insert-link, I only get
tab-completion for the URL prefix (e.g. fi <TAB> puts "file"), but not for
the path name for "file:" links.  So, if I type C-c C-l file:~/.ema
<TAB>, I expect to get file:~/.emacs (the possibilities are .emacs and
.emacs.d/), but all I get is the message "[No prefix completions]" in
the minibuffer juxtaposed to what's already there (the message
disappears after about a second).


Emacs  : GNU Emacs 24.0.50.10 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2010-08-09 on neko
Package: Org-mode version 7.01trans

current state:
==============
(setq
 org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-export-blocks-postblock-hook '(org-exp-res/src-name-cleanup)
 org-export-latex-format-toc-function 'org-export-latex-format-toc-default
 org-export-preprocess-hook '(org-export-blocks-preprocess)
 org-tab-first-hook '(org-hide-block-toggle-maybe
											org-babel-hide-result-toggle-maybe)
 org-src-mode-hook '(org-src-mode-configure-edit-buffer)
 org-confirm-shell-link-function 'yes-or-no-p
 org-reveal-start-hook '(org-decrypt-entry)
 org-export-first-hook '(org-beamer-initialize-open-trackers)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-cycle-hook '(org-cycle-hide-archived-subtrees
									org-cycle-hide-drawers org-cycle-show-empty-lines
									org-optimize-window-after-visibility-change)
 org-export-preprocess-before-normalizing-links-hook
'(org-remove-file-link-modifiers)
 org-mode-hook '((lambda nil
									(setq org-mouse-context-menu-function
									 (quote org-mouse-context-menu))
									(when
									 (memq (quote context-menu) org-mouse-features)
									 (org-defkey org-mouse-map [mouse-3] nil)
									 (org-defkey org-mode-map [mouse-3]
										(quote org-mouse-show-context-menu))
									 )
									(org-defkey org-mode-map [down-mouse-1]
									 (quote org-mouse-down-mouse))
									(when
									 (memq (quote context-menu) org-mouse-features)
									 (org-defkey org-mouse-map [C-drag-mouse-1]
										(quote org-mouse-move-tree))
									 (org-defkey org-mouse-map [C-down-mouse-1]
										(quote org-mouse-move-tree-start))
									 )
									(when (memq (quote yank-link) org-mouse-features)
									 (org-defkey org-mode-map [S-mouse-2]
										(quote org-mouse-yank-link))
									 (org-defkey org-mode-map [drag-mouse-3]
										(quote org-mouse-yank-link))
									 )
									(when (memq (quote move-tree) org-mouse-features)
									 (org-defkey org-mouse-map [drag-mouse-3]
										(quote org-mouse-move-tree))
									 (org-defkey org-mouse-map [down-mouse-3]
										(quote org-mouse-move-tree-start))
									 )
									(when
									 (memq (quote activate-stars) org-mouse-features)
									 (font-lock-add-keywords nil
										(\`
										 (((\, outline-regexp) 0
											 (\`
												(face org-link mouse-face highlight keymap
												 (\, org-mouse-map))
												)
											 (quote prepend))
											)
										 )
										t)
									 )
									(when
									 (memq (quote activate-bullets) org-mouse-features)
									 (font-lock-add-keywords nil
										(\`
										 (("^[ 	]*\\([-+*]\\|[0-9]+[.)]\\) +"
											 (1
												(\`
												 (face org-link keymap (\, org-mouse-map)
													mouse-face highlight)
												 )
												(quote prepend))
											 )
											)
										 )
										t)
									 )
									(when
									 (memq (quote activate-checkboxes)
										org-mouse-features)
									 (font-lock-add-keywords nil
										(\`
										 (("^[ 	]*\\([-+*]\\|[0-9]+[.)]\\) +\\(\\[[ X]\\]\\)"
											 (2
												
																																					 (\`
																																						
																																						
																																							(face
																																							
																																							
																																							
																																							
																																							
																																									bold
																																							
																																							
																																							
																																							
																																							
																																									keymap
																																							
																																							
																																							
																																							
																																							
																																									(\, org-mouse-map)
																																							
																																							
																																							
																																							
																																							
																																									mouse-face highlight)
																																						
																																						
																																							)
												
																																					 t)
											 )
											)
										 )
										t)
									 )
									(defadvice org-open-at-point
									 (around org-mouse-open-at-point activate)
									 (let ((context (org-context)))
										(cond
										 ((assq :headline-stars context) (org-cycle))
										 ((assq :checkbox context) (org-toggle-checkbox))
										 ((assq :item-bullet context)
											(let ((org-cycle-include-plain-lists t))
											 (org-cycle))
											)
										 (t ad-do-it))
										)
									 )
									)
								 #[nil "\300\301\302\303\304$\207"
									 [org-add-hook change-major-mode-hook
										org-show-block-all append local]
									 5]
								 #[nil "\300\301\302\303\304$\207"
									 [org-add-hook change-major-mode-hook
										org-babel-show-result-all append local]
									 5]
								 org-babel-result-hide-spec
								 org-babel-hide-all-hashes)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
													org-babel-execute-safely-maybe)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-agenda-mode-hook '((lambda nil
												 (setq org-mouse-context-menu-function
													(quote org-mouse-agenda-context-menu))
												 (org-defkey org-agenda-mode-map [mouse-3]
													(quote org-mouse-show-context-menu))
												 (org-defkey org-agenda-mode-map
													[down-mouse-3]
													(quote org-mouse-move-tree-start))
												 (org-defkey org-agenda-mode-map [C-mouse-4]
													(quote org-agenda-earlier))
												 (org-defkey org-agenda-mode-map [C-mouse-5]
													(quote org-agenda-later))
												 (org-defkey org-agenda-mode-map
													[drag-mouse-3]
													(quote
													 (lambda (event) (interactive "e")
														(case (org-mouse-get-gesture event)
														 (:left (org-agenda-earlier 1))
														 (:right (org-agenda-later 1)))
														)
													 )
													)
												 )
												)
 org-export-interblocks '((lob org-babel-exp-lob-one-liners)
													(src org-babel-exp-inline-src-blocks))
 org-occur-hook '(org-first-headline-recenter)
 org-export-preprocess-before-selecting-backend-code-hook
'(org-beamer-select-beamer-code)
 org-export-latex-final-hook '(org-beamer-amend-header
															 org-beamer-fix-toc
															 org-beamer-auto-fragile-frames
															 org-beamer-place-default-actions-for-lists)
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-export-blocks '((src org-babel-exp-src-blocks nil)
										 (comment org-export-blocks-format-comment t)
										 (ditaa org-export-blocks-format-ditaa nil)
										 (dot org-export-blocks-format-dot nil))
 )