I had this problem 19 and 20th. My search came up but I could not merge it. I had sent in a query and got this info.
I have Windows 7 pro and was running Internet Explorer 10.
I went into my Updates and scrolled down to the Internet Explorer 10 install and Uninstalled it.
It will automatically go back to Internet Explorer 9.
I also unchecked the automatic install so I would not get it again.
I restarted my computer and opened Family treemaker and now I am up and working like before.