Avidemux 2.6.7-1 crashes using GTK+ interface, and malfunctions if you use Qt or commandline interface. Messages from GTK+ version :
*************************
  Avidemux v
*************************
 http://www.avidemux.org
 Code      : Mean, JSC, Grant Pedersen
 GFX       : Nestor Di, <email address hidden>
 Design    : Jakub Misak
 FreeBSD   : Anish Mistry, <email address hidden>
 Audio     : Mihail Zenkov
 Mac OS X  : Kuisathaverat, Harry van der Wolf
 Win32     : Grant Pedersen

Compiler: GCC 4.8.1
Build Target: Linux (x86-64)
User Interface: GTK+ (3.10.6)

Large file available: 1 offset
Time: Sat Dec 28 14:52:23 2013

0: avidemux

Initialising prefs
 [load]  Loading prefs from /home/erkinalp/.avidemux6/config2
  [load]  Preferences found and loaded
 [cpuCaps]Checking CPU capabilities
		MMX detected 
		MMXEXT detected 
		SSE detected 
		SSE2 detected 
		SSE3 detected 
		SSSE3 detected 
[cpuCaps]End of CPU capabilities check (cpuMask :ffffffff, cpuCaps :1e6)

[SDL] Version: 1.2.15
[SDL] Initialisation succeeded
[SDL] Video Driver: x11


[Locale] setlocale tr_TR.UTF-8
[Locale] Textdomain was messages
[Locale] Textdomain is now avidemux
[Locale] Test: _Dosya

[Gtk] Entering gtk_init
Initializing Dithering tables
[COREUI] Compiled with 01.00.00
[COREUI] Linked with   01.00.00
[CoreUI] Compiled with patch version 0, using 0
[UI Toolkit] Running version 01:03
[Script] Scanning directory /usr/lib/ADM_plugins6/scriptEngines/
[Script] SpiderMonkey INFO - Registered Debug functions
[Script] SpiderMonkey INFO - Registered Test functions
[Script] SpiderMonkey INFO - Registered DialogFactory classes
[Script] SpiderMonkey INFO - Spidermonkey initialised
[Script] Tinypy INFO - Registering group addons
[Script] Tinypy INFO - Registering: help
[Script] Tinypy INFO - Registering: get_folder_content
[Script] Tinypy INFO - Registering: get_file_size
[Script] Tinypy INFO - Registering: basename
[Script] Tinypy INFO - Registering: dirname
[Script] Tinypy INFO - Registering class: Avidemux
[Script] Tinypy INFO - Registering class: Editor
[Script] Tinypy INFO - Registering class: Gui
[Script] Tinypy INFO - Registering class: DFToggle
[Script] Tinypy INFO - Registering class: DFInteger
[Script] Tinypy INFO - Registering class: DFMenu
[Script] Tinypy INFO - Registering class: DFTimeStamp
[Script] Tinypy INFO - Registering class: DialogFactory
[Script] Tinypy INFO - Registering group test
[Script] Tinypy INFO - Registering: testAssert
[Script] Tinypy INFO - Registering: testCrash
[Script] Tinypy INFO - Python initialised
Trying :</usr/lib/ADM_glade//main/gtk2_build.gtkBuilder>
Fontconfig error: "/etc/fonts/conf.d/65-khmer.conf", line 14: out of memory
Fontconfig error: "/etc/fonts/conf.d/65-khmer.conf", line 23: out of memory
Fontconfig error: "/etc/fonts/conf.d/65-khmer.conf", line 32: out of memory

(avidemux:10216): Gtk-WARNING **: Unknown property: GtkGrid.n-columns

(avidemux:10216): Gtk-WARNING **: Unknown property: GtkGrid.n-rows

(avidemux:10216): Gtk-WARNING **: Unknown property: GtkGrid.n-columns
[admGlade] Cannot locate widget jogg

(avidemux:10216): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(avidemux:10216): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
 [wrapGetCurrent]  Out of range for widget comboboxVideo
  [HandleAction]  ************ VIDEO_CODEC_CHANGED **************
  [wrapGetCurrent]  Out of range for widget comboboxVideo
  [wrapGetCurrent]  Out of range for widget comboboxAudio
  [HandleAction]  ************ AUDIO_CODEC_CHANGED **************
  [wrapGetCurrent]  Out of range for widget comboboxAudio
 
*********** BACKTRACK **************
/usr/lib/libADM_core6.so(ADM_backTrack+0x60) [0x7ff957e5b020]:0:<ADM_backTrack>:-2
avidemux(_Z20audioCodecSetByIndexii+0xa4) [0x42e1e4]:1:<audioCodecSetByIndex(int, int)>:0
avidemux(_Z12HandleAction6Action+0x1f6) [0x426406]:2:<HandleAction(Action)>:0
avidemux(_Z7initGUIRKSt6vectorIP13IScriptEngineSaIS1_EE+0xb3c) [0x45edcc]:3:<initGUI(std::vector<IScriptEngine*, std::allocator<IScriptEngine*> > const&)>:0
avidemux(_Z13startAvidemuxiPPc+0x2fb) [0x42b68b]:4:<startAvidemux(int, char**)>:0
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7ff953cf7de5]:5:<__libc_start_main>:-2
avidemux() [0x4237bf]:6:<avidemux() [0x4237bf]>:-2
*********** BACKTRACK **************
Cleaning up
 [deleteAll]  [Editor] Deleting all videos
  [deleteAll]  [Editor] Deleting all videos
  [deleteAll]  [Editor] Deleting all videos
 [Script] Tinypy INFO - Closing Python
[Script] SpiderMonkey INFO - Closing Spidermonkey
[SDL] Quitting...
 [destroyGUI]  Destroying Gtk GUI
  [renderDestroy]  Cleaning up Render
  [destroy]  Destroying preview
  [ADM_ad_cleanup]  Purging audio decoder
  [ADM_vf_clearFilters]  clear filters
  [ADM_vf_cleanup]  Destroying video filter list
 --End of cleanup--

Images stat:
___________
Max memory consumed (MB)     : 0
Current memory consumed (MB) : 0
Max image used               : 0
Cur image used               : 0
 [onexit]  
Goodbye...