[Aetae]

oryth, может проблема в этом http://help.dottoro.com/ljcjcwuo.php?

Be careful about the scrollTo method!
In Internet Explorer earlier than version 8, the scrollTo method uses physical pixel size, while from version 8, it uses logical pixel size for scrolling.
What does it mean?
If the browser is not at the normal zoom level (the user has the ability to zoom in or out a web page: CTRL and +, CTRL and -), the scrollTo method works differently from version 8 than in earlier versions. It scrolls the document to the specified positions in default pixel size in Internet Explorer before version 8 even if the current pixel size in the document is different. From Internet Explorer 8 and in Firefox, Opera, Google Chrome and Safari, it scrolls the document to the specified positions in current pixel size.
For further details, please see the examples below.