I have a new install of Sims 3, no mods and only lots downloaded so far. If I enter "Edit Town" I can place and move residential lots without a problem. If I place a community lot from the lot bin I am then taken to the Rotate Lot screen as usual and everything is fine until I hit "Accept" and then the user interface disappears. It's like being in cameraman mode except TAB doesn't work. The game is not frozen, the usual camera mode keys work: Z,X,A,S, etc., the music plays, I can rotate via the mouse and see other lots, I just can't exit the newly placed community lot. According to Task Manager, TS3 is still running and I've left it as long as 1/2 hour but nothing changes so I end up forcing the app to quit.

Does anyone have any ideas? Is there a key stroke to get the UI back? I think I've hit every key on the keyboard at this point. Thanks!

edit to clarify: this was with the first patch only. I got desperate and downloaded the second patch hoping it would help. Nothing changed.

For what it's worth I've confirmed that in my new install, first patch only game this only happens when I have changed a residential lot to a commercial one and am attempting to place a user made lot. I can move rabbit holes anywhere, but if I convert a lot and try to place a library of my own on it, I lose the UI and have to force quit.

Doesn't really solve any problems, but maybe it will trigger an idea in someone else.