I have installed 14.04 LTS on to my Samsung 850 pro SSD and it was working fine then last time I booted it, it took three attempts to boot. Basically the request for the password appears and I enter it and it says successful. Suddenly some text appears of it setting up and then a black screen and that is it. I have now tried to boot about 12 times now and every time I get to the same point that it accepts my password and then a black screen. I have most of my stuff backed up which is lucky but I don't want to have to reinstall if possible. How can I sort this?
Thanks