So my computer been giving me grief for a while, it does these random shut down. But usually it comes back up and then just complains but everything fine and still there. It usually happens at some point during it's sleep mode, in either case now that I have two hard drives and Ubuntu seems to be it's default it comes back in Ubuntu. Now so far it been fine there to, but recently when i tried to wake it up the computer, it froze and locked me out of the commands to do anything. So i did a hard restart, windows came back fine, it did a disk check. but when i tried ubuntu it came back, said it needed an update and then I restarted like it said to. At restart I got to the login screen but after that nothing but my background. I did a log out and did a keyboard restart. Twice, each time nothing on the screen but my back ground and the only way to restart was through commands. I'm not sure if the update had anything to do with it or the hard restart, I saw some errors after I did a command restart. But I was wondering if anyone had some ideas, should I revert back to a pervious version of ubuntu ? And if you need anymore info let me know.