I'm using dell's latitude xt tablet. When i upgraded my system from build 7057 to 7068 i noticed that touch screen stopped working. I tried reinstalling n-trig drivers and making clean install of build 7068, but nothing helps. Problem solves only switching back to old n-trig drivers (those from vista), but they doesn't support windows 7 multitouch. Did anyone experienced such problem on his laptop with this new build ?