I just upgraded from 11.10 dual boot Windows Vista to 12.04 dual boot Vista. As far as I saw, the upgrade went without a hitch. I installed through Terminal and it looks like it finished without errors. Now that I have 12.04, I cannot access my system settings, or any other settings. Did something get screwed up on install, or is there something I can change? I'm pretty new with Ubuntu, explanation is appreciated.
Thanks in advance!