Problems Runing Ardour

Hello!
I have an ubuntustudio 7.10 with m-audio firewire. When i’m running ardour2, the window of session open. After the choice there is the error following :
(jack is running)

WARNING: Your system has a limit for maximum amount of locked memory!
This might cause Ardour to run out of memory before your system runs out of memory. You can view the memory limit with ‘ulimit -l’, and it is normally controlled by /etc/security/limits.conf
Ardour/GTK2.0.5
(construit avec 2234 et GCC version 4.1.3 20070805 (prerelease) (Ubuntu 4.1.2-15ubuntu1))
Copyright © 1999-2007 Paul Davis
Pour certaines parties, Copyright © Steve Harris, Ari Johnson, Brett Viren, Joel Baker

Ardour est distribué sans AUCUNE GARANTIE
pas même de COMMERCIALISATION
ou d’ADÉQUATION À UN BUT PARTICULIER.
Ceci est un logiciel libre, et vous êtes encouragé à le distribuer
sous certaines conditions ; voir le fichier source pour les conditions de distribution.
loading default ui configuration file /etc/ardour2/ardour2_ui_default.conf
Configuration::pack_canvasvars () called, canvas_colors.size() = 82
ardour: [INFO]: Loading ui configuration file /etc/ardour2/ardour2_ui_dark.rc
theme_init() called from internal clearlooks engine
loading system configuration file /etc/ardour2/ardour_system.rc
ALSA lib seq_hw.c:457:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory
ardour: [WARNING]: The ALSA MIDI system is not available. No ports based on it will be created
ardour: [INFO]: No H/W specific optimizations in use
ardour: [INFO]: looking for control protocols in /home/den/.ardour2/surfaces/:/usr/lib/ardour2/surfaces/
ardour: [ERROR]: No port called mcu. Add it to ardour.rc.
ardour: [INFO]: Control protocol Mackie not usable
ardour: [INFO]: Control surface protocol discovered: “Generic MIDI”
Unable to open “/dev/input/event0”: Permission denied
Unable to open “/dev/input/event1”: Permission denied
Unable to open “/dev/input/event2”: Permission denied
Unable to open “/dev/input/event3”: Permission denied
Unable to open “/dev/input/event4”: Permission denied
Unable to open “/dev/input/event5”: Permission denied
Unable to open “/dev/input/event6”: No such file or directory
Unable to open “/dev/input/event7”: No such file or directory
Unable to open “/dev/input/event8”: No such file or directory
Unable to open “/dev/input/event9”: No such file or directory
Unable to open “/dev/input/event10”: No such file or directory
Unable to open “/dev/input/event11”: No such file or directory
Unable to open “/dev/input/event12”: No such file or directory
Unable to open “/dev/input/event13”: No such file or directory
Unable to open “/dev/input/event14”: No such file or directory
Unable to open “/dev/input/event15”: No such file or directory
powermate: Opening of powermate failed - No such file or directory
ardour: [INFO]: Control protocol powermate not usable
JACK tmpdir identified as [/dev/shm]
loading bindings from /etc/ardour2/ardour.bindings
Gtk-Message: (for origin information, set GTK_DEBUG): failed to retrieve property GtkWidget::cursor-color' of typeGdkColor’ from rc file value “((GString*) 0x8fc8ac0)” of type `GString’
Loading session /home/den/abc using snapshot abc (2)
Segmentation fault (core dumped)

Someone can help me?
Thanks