Not sure where to file an issue, but Chrome has major display errors lately on Windows 7.
I don't know what platform you test on mostly but I would guess it's not Windows. I would also state that is a problem, because I would guess most of your users are on Windows.
Since Chrome is now the most popular browser on earth, it goes with the territory...
Please test more on Windows and please fix your display errors. It's a major pain in my ass.
thanks
Jeff Papineau