MuseScore crash when opening midi file

hi there,
i'm using musescore 1.1 from official ubuntu repository and try to open a midi file with makes it crash.
here is the crash report :
(I alose join the midi file)
musescore -D
PulseAudio found, but no need to suspend. Starting mscore.real...
Alsa_driver: the interface doesn't support mmap-based access.
init ALSA audio driver failed
init ALSA driver failed
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Erreur d'entrée/sortie(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Erreur d'entrée/sortie(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Erreur d'entrée/sortie(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Erreur d'entrée/sortie(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
Cannot connect to server socket err = Aucun fichier ou dossier de ce type
Cannot connect to server socket
jack server is not running or cannot be started
Can't open "/home/daeavelwyn/.local/share/data/MusE/MuseScore/cookies.txt" to read cookies
registerPlugin: add action idx 5
Load plugin: no menu property
preferences.checkUpdateStartup: 720
lastupdate: 10.11.2011 21:24:52.055
X Error: BadWindow (invalid Window parameter) 3
Major opcode: 20 (X_GetProperty)
Resource id: 0x68000e1
MidiTrack::cleanup: overlapping events: 38:24810+240 38:24960+240
0xb33e75a0 - 0xb33ed110
MidiTrack::cleanup: overlapping events: 38:25290+240 38:25440+240
0xb33eaa58 - 0xb3ddfb10
MidiTrack::cleanup: overlapping events: 38:25770+720 38:26400+240
0xab3b8398 - 0xab33c920
MidiTrack::cleanup: overlapping events: 38:26730+240 38:26880+240
0xab337270 - 0xab337518
MidiTrack::cleanup: overlapping events: 38:27690+240 38:27840+240
0xb3d88180 - 0xab34a0c0
MidiTrack::cleanup: overlapping events: 38:28170+240 38:28320+240
0xb33d5170 - 0xab331f40
MidiTrack::cleanup: overlapping events: 38:28650+720 38:29280+240
0xb59b42b0 - 0xab349768
MidiTrack::cleanup: overlapping events: 38:29610+240 38:29760+240
0xb33e3fc8 - 0xb3d8ac80
MidiTrack::cleanup: overlapping events: 38:30570+240 38:30720+240
0xb59779e0 - 0xb5960450
MidiTrack::cleanup: overlapping events: 38:31050+240 38:31200+240
0xb337cf30 - 0xb3d69730
MidiTrack::cleanup: overlapping events: 38:31530+720 38:32160+240
0xb3dc6b30 - 0xb3dd6428
MidiTrack::cleanup: overlapping events: 38:32490+240 38:32640+240
0xab3396e8 - 0xb33c6b58
MidiTrack::cleanup: overlapping events: 38:33450+240 38:33600+240
0xb33e6580 - 0xb33e8220
MidiTrack::cleanup: overlapping events: 38:33930+240 38:34080+240
0xb331bbe0 - 0xb33c65d8
MidiTrack::cleanup: overlapping events: 38:34410+720 38:35040+240
0xab341a48 - 0xb3db4e78
MidiTrack::cleanup: overlapping events: 38:35370+240 38:35520+240
0xab379f28 - 0xb3d866a0
MidiTrack::cleanup: overlapping events: 38:36330+240 38:36480+240
0xb3393408 - 0xb3dd6680
MidiTrack::cleanup: overlapping events: 38:36810+240 38:36960+240
0xab3d4238 - 0xb33ea628
MidiTrack::cleanup: overlapping events: 38:37290+720 38:37920+240
0xb33d5680 - 0xb33e3d28
MidiTrack::cleanup: overlapping events: 38:38250+240 38:38400+240
0xb33cfaf0 - 0xb3d86618
MidiTrack::cleanup: overlapping events: 38:39210+240 38:39360+240
0xb3dee968 - 0xab3420d0
MidiTrack::cleanup: overlapping events: 38:39690+240 38:39840+240
0xb33c46f0 - 0xb3dd3570
MidiTrack::cleanup: overlapping events: 38:40170+240 38:40320+240
0xab33a828 - 0xb3dec5a0
meta key: no staff
findKey(): illegal key 8 found
Segmentation fault