There are two ways to solve it:
One is on the user side, which is what i did. You do that inside IE9 by bringing up the menu bar via the alt key (they must be on your site when doing this). Then tools and highlite/check the compatibility view which will add The Streak to the compatibility list.
Second method would be to adjust the website html code to inform IE9 to use this mode.
And if u need help Ron would be more than happy to help
In fact if u EVER need help Ron is available as this is what he does for a living
PM me and i will hook u up with him