+1  A: 

Your best bet may be to hide the iframe during the scroll event, or reflow the iframe after that event by resizing its width 1px smaller and then back to its original size. A reflow of the iframe should cause a redraw. You probably won't be able to make IE6 play 100% nice with iframe scrolling, etc.

Alex Sexton
Thanks Alex! Hiding and showing the iframe during the scroll event seems to fix it 95% of the time (occasionally see slight bleeding). I don't really mind if IE6 users have to deal with a little bit of frustration, but I'd like to keep this open for a while longer to see if there are any 100% solutions. Thanks again :)
Rhys Causey
No sweat! I'd love to see a 100% working version as well! So keep em comin'!
Alex Sexton
A: 

I am running into this same issue. Other than forcing a browser re-draw of the iframe, was anyone able to find a solution? I need to fix the issue without modifying the parent frame, which I don't have access to.

Brad