Xquartz plante une boucle infinie dans Mountain Lion ?

J'essaie de faire fonctionner Xquartz dans Mountain Lion, mais lorsque je clique dessus, il démarre, puis se plante, puis redémarre, etc. Il tourne en boucle comme ça jusqu'à ce que je redémarre ou que je me déconnecte.

Ma console dit ceci pour chaque boucle :

    8/15/12 10:00:21.806 PM org.macosforge.xquartz.startx[14953]: lockfile: Sorry, giving up on "/var/folders/vr/6swz_qtn60q0ld9lp_pbdqk80000gn/T//font_cache.lock"
8/15/12 10:00:21.806 PM org.macosforge.xquartz.startx[14953]: font_cache is already running.
8/15/12 10:00:21.806 PM org.macosforge.xquartz.startx[14953]: If you believe this to be erroneous, please remove /var/folders/vr/6swz_qtn60q0ld9lp_pbdqk80000gn/T//font_cache.lock.
8/15/12 10:00:21.830 PM org.macosforge.xquartz.privileged_startx[14842]: lockfile: Sorry, giving up on "/opt/X11/var/run/font_cache.lock"
8/15/12 10:00:21.831 PM org.macosforge.xquartz.privileged_startx[14842]: font_cache is already running.
8/15/12 10:00:21.831 PM org.macosforge.xquartz.privileged_startx[14842]: If you believe this to be erroneous, please remove /opt/X11/var/run/font_cache.lock.
8/15/12 10:00:21.893 PM org.macosforge.xquartz.startx[14953]: xauth:  file /Users/gav/.serverauth.14954 does not exist
8/15/12 10:00:21.953 PM org.macosforge.xquartz.X11.stub[14994]: Xquartz: Unable to locate waiting server: org.macosforge.xquartz.X11
8/15/12 10:00:21.956 PM org.macosforge.xquartz.X11.stub[14995]: Xquartz: Starting X server: /Applications/Utilities/XQuartz.app/Contents/MacOS/X11 --listenonly
8/15/12 10:00:22.305 PM SIMBL Agent[11494]: warning: failed to get scripting definition from /Applications/Utilities/XQuartz.app; it may not be scriptable.
8/15/12 10:00:22.306 PM SIMBL Agent[11494]: eventDidFail:'tvea' error:Error Domain=NSOSStatusErrorDomain Code=-600 "The operation couldn’t be completed. (OSStatus error -600.)" (procNotFound: no eligible process with specified descriptor) UserInfo=0x4001afc60 {ErrorNumber=-600} userInfo:{
    ErrorNumber = -600;
}
8/15/12 10:00:22.307 PM SIMBL Agent[11494]: eventDidFail:'tvea' error:Error Domain=NSOSStatusErrorDomain Code=-1701 "The operation couldn’t be completed. (OSStatus error -1701.)" (errAEDescNotFound) UserInfo=0x4001d7200 {ErrorNumber=-1701} userInfo:{
    ErrorNumber = -1701;
}
8/15/12 10:00:23.956 PM org.macosforge.xquartz.startx[14953]: /opt/X11/bin/xinit: XFree86_VT property unexpectedly has 0 items instead of 1
8/15/12 10:00:24.064 PM org.macosforge.xquartz.startx[14953]: /opt/X11/bin/xinit: connection to X server lost
8/15/12 10:00:24.065 PM org.macosforge.xquartz.startx[14953]: 
8/15/12 10:00:25.066 PM org.macosforge.xquartz.startx[14953]: waiting for X server to shut down 
8/15/12 10:00:25.113 PM org.macosforge.xquartz.startx[14953]: waiting for X server to shut down 
8/15/12 10:00:25.114 PM com.apple.launchd.peruser.501[129]: (org.macosforge.xquartz.startx) Throttling respawn: Will start in 7 seconds

Je ne connais rien à Xquartz, donc je ne sais pas comment diagnostiquer le problème.

J'utilise Xquartz 2.7.2 que l'on trouve ici. http://xquartz.macosforge.org/landing/