Hi Oleg,
Thanks for your reply. In the processs of replying to you, to provide more information, I figured out the problem. I left all of my info here, in case anyone else has the same issue and can learn from my mistake. You don't need to do anything more for me on this issue.
Thanks,
Reg
IE9 debugger isn't telling me anything that I can see is helpful. There are no error messages (although I do see them when I make other mistakes, so it is not just that I am not using it correctly).
My html for the page includes two divs, one for each table: