After installing Ubuntu on my laptop, I installed Kubuntu to see what it is like. I preferred Ubuntu, so I uninstalled Kubuntu using these instructions https://help.ubuntu.com/community/PureGnome. During the uninstallation terminal said that I need to stop a KDE deamon and I clicked yes and it closed my desktop and put me in tty1 (I think). Since I didn't know what was happening and nothing seemed to be changing, I force shut down the laptop. Now when I start it it is forever on the loading screen. I've tried to reinstall using a disc, but that won't load either. I am new to linux/ubuntu and have no idea how to do things.