Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Just wait , it use to solve it self after a few seconds ~The past few days I have found that when I hit the quit button the sim won't completely shut down and I have to use the Task Manager to close the game down. Not had this before although I can see on some of the forums that this seems to be a sporadic issue.