virtualbox
WARNING: The vboxdrv kernel module is not loaded. Either there is no module
         available for the current kernel (3.6.11-1-ARCH) or it failed to
         load. Please reinstall the kernel module virtualbox-modules or
         if you don't use our stock kernel compile the modules with

           sudo /usr/bin/vboxbuild

         You will not be able to start VMs until this problem is fixed.