smplayer gets stuck when mkv file is played..

[CorruptDNA]

i dont know what has happened but my smplayer gets stuck when i play any kind of mkv file.. it was working file til yesterday, and today, i had to restart my computer manually 10-15 times!
heres the log for smplayer :

p, li { white-space: pre-wrap; } [02:29:48] main: lock_file: /home/umair/.smplayer/smplayer_init.lock
[02:29:48] global_init
[02:29:48] global_init: config file: '/home/umair/.smplayer/smplayer.ini'
[02:29:48] Preferences::load
[02:29:48] Translator::loadCatalog: can't load qt_en_US from /usr/share/smplayer/translations
[02:29:48] Translator::loadCatalog: can't load qt_en_US from /usr/share/qt4/translations
[02:29:48] Translator::loadCatalog: successfully loaded smplayer_en_US from /usr/share/smplayer/translations
[02:29:48] This is SMPlayer v. 0.6.1 (SVN r1304) running on Linux
[02:29:48] Qt v. 4.4.0
[02:29:48] * application path: '/usr/bin'
[02:29:48] * data path: '/usr/share/smplayer'
[02:29:48] * translation path: '/usr/share/smplayer/translations'
[02:29:48] * doc path: '/usr/share/doc/packages/smplayer'
[02:29:48] * themes path: '/usr/share/smplayer/themes'
[02:29:48] * shortcuts path: '/usr/share/smplayer/shortcuts'
[02:29:48] * smplayer home path: '/home/umair/.smplayer'
[02:29:48] * ini path: '/home/umair/.smplayer'
[02:29:48] * current path: '/home/umair'
[02:29:48] SMPlayer::processArgs: arguments: 1
[02:29:48] SMPlayer::processArgs: 0 = smplayer
[02:29:48] SMPlayer::processArgs: files_to_play: count: 0
[02:29:48] Recents::load
[02:29:49] Core::Core: file_settings: '/home/umair/.smplayer/smplayer_files.ini'
[02:29:49] MplayerProcess::init_rx
[02:29:49] MplayerLayer::allowClearingBackground: 0
[02:29:49] Preferences::monitor_aspect_double
[02:29:49] warning: monitor_aspect couldn't be parsed!
[02:29:49] monitor_aspect set to 0
[02:29:50] Playlist::setModified: 0
[02:29:50] Playlist::loadSettings
[02:29:50] Playlist::addItem: '/home/umair/Desktop/[HorribleSubs] Naruto Shippuuden - 167 [480p].mkv'
[02:29:50] Playlist::setModified: 0
[02:29:50] name: '[HorribleSubs] Naruto Shippuuden - 167 [480p].mkv'
WARNING: [02:29:50] QTableWidget: cannot insert an item that is already owned by another QTableWidget
WARNING: [02:29:50] QTableWidget: cannot insert an item that is already owned by another QTableWidget
[02:29:50] Style name: 'cleanlooks'
[02:29:50] Style class name: 'QCleanlooksStyle'
[02:29:51] BaseGui::initializeMenus
[02:29:51] BaseGui::initializeMenus
[02:29:51] BaseGui::updateRecents
[02:29:51] BaseGui::updateWidgets
[02:29:51] BaseGui::updateWidgets
[02:29:51] BaseGui::updateRecents
[02:29:51] PlaylistDock::hideEvent: isFloating: 0
[02:29:51] undocked
[02:29:51] BaseGui::initializeMenus
[02:29:51] BaseGui::updateRecents
[02:29:51] BaseGui::updateWidgets
[02:29:51] BaseGuiPlus::loadConfig
[02:29:51] DefaultGui::createStatusBar
[02:29:51] DefaultGui::createActions
[02:29:51] DefaultGui::createControlWidget
[02:29:51] TimeSlider::setDragDelay: 100
[02:29:51] DefaultGui::createControlWidgetMini
[02:29:51] TimeSlider::setDragDelay: 100
[02:29:51] TimeSlider::setDragDelay: 100
[02:29:51] BaseGui::initializeMenus
[02:29:51] BaseGui::updateRecents
[02:29:51] DefaultGui::updateWidgets
[02:29:51] BaseGui::updateWidgets
[02:29:51] DefaultGui::loadConfig
[02:29:51] DefaultGui::updateWidgets
[02:29:51] BaseGui::updateWidgets
[02:29:51] SMPlayer::gui: changed working directory to app path
[02:29:51] SMPlayer::gui: current directory: /usr/bin
[02:29:51] BaseGui::showEvent
[02:29:51] main: remove_lock: /home/umair/.smplayer/smplayer_init.lock
[02:29:51] BaseGui::loadActions
[02:29:51] ActionsEditor::loadFromConfig
[02:29:52] BaseGui::initializeMenus
[02:29:52] BaseGui::updateRecents
[02:29:52] DefaultGui::updateWidgets
[02:29:52] BaseGui::updateWidgets
[02:29:56] BaseGui::showMplayerLog
[02:30:06] BaseGui::showLog




if you know anything to help, like reinstalling or removing a package, id be grateful..
Thakns..

[rvm4000]

[02:29:48] This is SMPlayer v. 0.6.1 (SVN r1304) running on Linux


That version is very old. Why don't you update it to 0.6.9?

http://smplayer.berlios.de/downloads.php

[CorruptDNA]

well i would but i dont think it would help, since i cant play mkv files in vlc either (even the ones that used to work, hang the computer. ) and can only avi files ..