I was in the process of upgrading to jaunty on my desktop and someone in my house turned off the computer without finishing the upgrade and now it won't boot properly. I can't do anything now. This is my desktop so I'm not able to access the internet from home so I can't give a detailed verbatim transcript of the error but I can provide one if need be. Maybe I need to re-install but I can't seem to do anything after I boot up and get the error. Can anyone help me fix this?