I used Ubuntu a long time ago and was ok with it. I went away from it because I needed a Windows computer to do work. Now that I have a second computer I back on it but now I'm relearning everything about it, well still have to relearn but you get the picture. When I got the computer it had a password on it and couldn't access it so I was a little lazy and just threw a start up disk I made in '09 I believe it was. Got everything installed and up and running, I then tried to upgrade to the latest version but a message comes up that it couldn't contact the server or something like that. Said that I may have a network problem. I checked my Internet and everything works. I can browse no problem, also, trying to download Adobe Flash, it downloads and I can extract the files but that's it, a message pops up saying that I need to updates the system for it to work. so I try again and still nothing. Figuring that maybe the system was down for maintenance or something crazy I gave up for the day and now I back and still the same problems. I did the obvious of restarting and trying again but to no avail. What should I do? Like I said before it's been a long time since I used Ubuntu last so please be gentle and walk me through step by step. Thank you.