It's great that you guys are working hard on security issues, but it's equally important to fix IE bugs. The z-index bug is a well know CSS bug since IE 4 or 5 nearly a decade ago with no easy cross-platform workaround, and it looks that the IE 7 team
are still not aware of the problem. Please read <a href='http://cdcer.com/?2005/09/brutal-solution-to-ie-z-index-bug.html'>A brutal solution to the IE z-index bug</a> for more details and try to fix it. the world can't afford to fight with the bug for another
Tell me about it. IE7 is in the wild, and I'm still having to workaround 10 year old z-index bugs. Every other browser seems to work with CSS.