Problem with track changes/review function in Word 2010 and EndNote


I have installed EndNote x6.

When I work on a word 2010 document with the track change mode is on and set to Final; showing markup,

every about 30 second the page shifts up (jumps) about half a page.

This does not happen when the review display is set to Final.

It is a real issue while I’m working on long documents.

Does anyone knows how to solve it?

Thank you,