You could start
here[
^]. If that doesn't have a solution search for yourself - there is a ton of stuff out there.
I sympathise if you are still forced to develop for IE6: I recently worked in a company that had 50000 users still on IE6 with no immediate plans to migrate though I seem to recall developing around that issue by moving things around on the page as I don't remmeber there being a simple or straightforward fix. Good luck!