I have an iframe in one of my sites which works fine, except for the fact that if you move the cursor inside the iframe and then move it out of the iframe the content jumps to the left and stays there in the iframe. Hopefully, you can follow that. If you know what may be causing it, or how to stop this from happening please let me know.
You can see the iframe at http://www.jkcpa.org/Calendar.htm
it only does this if it is on one of the pages besides the main page loaded for the iframe.