[ubuntu] Trouble starting X, insufficient memory?

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http://ubuntuforums.org – Hi... Yesterday, I added a network printer at my institute. While trying to print for the first time, the computer asked for authentication, then complained of low disk space. I deleted a 3 GB movie from the Desktop and restarted the computer. Now Gnome does not start. I first got a screen which said something like "Starting cups server.." at the end. I went back and deleted all the files that had been created recently in /etc/cups/. Now the screen says that it is starting GDM, then stopping GDM and the last message is something like "Stopping Jupiter dameon..". I c (Hardware)