I've noticed a bug that makes my game unplayable in internet explorer. It would appear that if you create a family that has a tiled background in it, it simply won't load in internet explorer 9. I've definitely had this problem since 78, possibly beforehand, but have only just identified what the actual cause was.
Here's the html.
And here's the capx.
I've tried running it on ie9 on several computers and it hasn't loaded, so don't think it's just me =) All pc's I've run this on have been windows 7, but have varied between 32 and 64bit.