last week I bought T4410 in ebay. today T4410 was arrived. and I turn on the laptop. but, it's Multi touch is not avalible. I don't know what's wrong. the seller wrote this in auction. [ Get in touch with the latest dual digitizer technology with the optional capacitive multi-touch screen. With its support of on-screen gestures, the dual digitizer takes user interaction to a new level, delivering a more efficient and convenient computing experience.] what can I do?