Other people might have issues with that, but it is definitely not the cause of my issues with the population tool tip, because I haven't made anything in the Mayor's House for days now.
Lately, for me, it seems to be a crapshoot as to whether it will work or not. When it doesn't sometimes a refresh fixes it, other times not. Sometimes rebooting my browser fixes it, other times not. Sometimes changing to a different browser fixes it, other times not. Sometimes rebooting the computer fixes it, other times not.
But I have had issues with it not appearing now when using IE and Chrome on a laptop running windows 7 and with Chrome and Opera on a desktop running Vista, both of which have flash player kept up to date, so I cannot figure out what the root cause is for the life of me!