Hello,
unfortunately I can not help you, as I have never experienced such behaviour - and as long the web search is relevant nobody else has.
Therfore, I have asked at HP's ITRC forum... if there is somebody who can answer you question - that person definitely follows that forum.
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1475434
Please, be prepared to answer the eventual questions.
Good luck.