/etc/rc.local is not exectued @ startup

[inode77]

After startup /etc/rc.local is not run.

-rwxr-xr-x 1 root root 435 Jun 3 15:35 /etc/rc.local

/etc/rc.local:
#!/bin/sh -e
#
logger "rc.local is run"
echo disable > /proc/acpi/ibm/bluetooth
echo disable > /proc/acpi/ibm/wan
exit 0

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: upstart 1.5-0ubuntu7
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Sun Jun 3 15:36:16 2012
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=rxvt
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: upstart
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.init.tty3.conf: [modified]
modified.conffile..etc.init.tty4.conf: [modified]
modified.conffile..etc.init.tty5.conf: [modified]
modified.conffile..etc.init.tty6.conf: [modified]
mtime.conffile..etc.init.tty3.conf: 2012-06-01T16:58:31.695266
mtime.conffile..etc.init.tty4.conf: 2012-06-01T16:58:50.191266
mtime.conffile..etc.init.tty5.conf: 2012-06-01T16:59:03.055267
mtime.conffile..etc.init.tty6.conf: 2012-06-01T16:59:12.875267

[inode77 (simon-gerber)]

No changes but now /etc/rc.local get's executed.