I just updated my kernel to 3.7.0-7 from the Ubuntu software updater. However after I rebooted, I got to a blank desktop with only a wallpaper. I had this issue before I installed my nvidia drivers on 3.5.0-17 however now when I try to install the drivers I get an error saying Error! bad return status for module build on kernel: 3.7.0-7 (x8 kernel package linux-headers-3.7.0-7-generic is not supported. Please help, nouveau doesn't work on my system also because I get a GPU lockup.