First off, petulka77, you registered and posted 1 time to tell him to get a better browser? What a waste of your time.
greenjaguar,
This can occur on some sites that use old coding that isn't compatible with IE9.
Try this:
On the sites this is occuring on, click the little icon in the address bar that looks like a torn sheet of paper - when you hover over it, it should say "Compatibility mode". It should reload, and the error may stop.
Let me know.