Why does this website cause tearing in IE?

http://gaxweb.eu/deploy/phenix/en-de/products?target=1340

I've got a weird IE bug here that causes tearing if you scroll that carousel with your mousewheel for example. The images are being torn into 2 parts, just like tearing in 3D games when you play without vsync. How is this possible? It works fine in other browsers. And even more import开发者_如何学编程ant: how shall I fix this?

The weirdest thing: I've used this on another website before, and there no tearing appears. I've run out of ideas, so any help is appreciated.

I am getting a javascript error in IE which I am not getting in other browsers. Start there as it may be causing extra processing or a delay leading to the tearing.