I just looked at your site through IE9, and am seeing the same issue. On our site (or on the
JFBConnect Facebook Like
demo page), we're not seeing that behavior in IE9.
It looks to be something with your template. When the page first loads, you can see a few weird characters in the top left which then go away. However, if I change the template to beez5, you'll see the characters stay there, but the Like button works. I'd check to make sure you don't have any unclosed HTML tags or other markup problems with your template. To see your site with beez_5, simply add ?template=beez_5 to the URL.
Hope that helps you get going,
Alex