Hi there.
For reasons I am mentioning elsewhere I attempted to do a factory reset through a shortcut as described here
http://www.carls-sims-3-guide.com/forum/index.php?topic=7507.0.
I did everything as suggested, except I didn´t copy my saves to the new folder because I anyway wanted to test a new game. I also freshly installed all the downloads via launcher. I double-checked, I did everything right, including renaming and so on.
Then I started the game normally and chose a world for a new game. When it loaded, there were no pre-made families in the town, as it should be, and there wasn´t a button "choose household" there (only create sims and move in). The houses and venues were there, but all empty.
I deleted all and repeated the factory reset in the same way, with the same results. It was the same problem regardless of which world I chose. However, when I copied one save to the new Sims 3 file, it loaded normally, Sims were there and so on, it wasn´t lagging, crashing, just fine (however it didn´t solve another problem I was trying to get rid of in the first place). When I loaded the game from an "old" folder and started a new game, the world was there complete with families present.
Then when I was browsing through the directories, two differences I noticed:
1. In the "old" folder (the one that worked) there was but one .package file called ccmerged in DCBackup, while in the "new" folder, at the same place, there were at least 120 .package files including ccmerged.
2. In the "old" folder, in Library, there are some 40 package files, while in the "new" folder, there was just one (with identical size to one of those in the "old" folder, but with a different name).
I copied the library files from old to new, but the problem remained.
If anybody could guess what is the problem here, please let me know.