I recently instaled Ubuntu 12.10 on my laptop along side Windows 7. I had to run boot repair to get everything working properly but I didn't have any immediate problems as a consequece. I booted Ubuntu sucessfully installed ~230 updates and then rebooted, once again with no issues. Today I booted my machine again and most of the GUI is missing. All I get is a blue background. System displays like touchpad on/off and wireless networks detected still show up and i can use the right click menu and the console using Ctrl + Alt + T. I have an Nvidia Geforce 630M if that helps. Thank you for your time.