I just installed Ubuntu onto my PC and everything seemed to be working great. Then, when it got time to try and install Java, I attempted to open the "Add/Remove Programs" tab. It opened for a moment, long enough for it to check installed and available applications, then it dissapeared once that process was complete. I tried it a few times and it's still doing the same thing. I also tried to manually activate it from the terminal and I had the same luck. Anyone know what could be causing this and what I could do to fix it? Any help would be appreciated. Thanks.