shine@devsys:~/.unison$ /usr/lib/gnome-session/gnome-session-check-accelerated-helper; echo $? | pastebinit
NVIDIA: API mismatch: the NVIDIA kernel module has version 304.43,
but this NVIDIA driver component has version 304.51.  Please make
sure that the kernel module and all NVIDIA driver components
have the same version.
http://paste.ubuntu.com/1230991/
shine@devsys:~/.unison$ /usr/lib/gnome-session/gnome-session-check-accelerated-helper | pastebinit
NVIDIA: API mismatch: the NVIDIA kernel module has version 304.43,
but this NVIDIA driver component has version 304.51.  Please make
sure that the kernel module and all NVIDIA driver components
have the same version.
You are trying to send an empty document, exiting.
shine@devsys:~/.unison$