When I add a new citation in Word 2010, the cursor frequently jumps to the bibliography at the end of the document. I then have to search back through the document for the location I was editing.

This behavior will last for a long time...then it will disappear again, but always returns.

I often have multiple Word documents open. I tried closing them all and restarting Word. After the restart, the insertion of citations works properly again, even if I open multiple documents. Based on the history, at some point, the behavior is sure to return, however.

Any clues as to what is causing this?