Sims 2 University: What happened to my neighborhoods from before I loaded this? I did back up my SIMS2 folder. I loaded Sims 2 University and when I start the game, it says I can create a new neighborhood but I can find what happened to my neighborhood I was playing before I loaded the expansion. How do I get this back?
Installing university alters the format of the saved games ... in your case something has gone wrong. You should still have a copy of the back up copy. If so uninstall University then uninstall the core game, The Sims 2. The reinstall the core game. Copy your back up copy of the saved games back into My Documents/EA Games/. Run the game to make sure everything works. Then (remove any dowloads first!) install University again. Everything should be fine then.