I bought a notebook 9pen a year ago . A year later, at some point, the pencil stopped working when opening the laptop on 360, and after some time, it stopped working at all. Sometimes a soft reset in the BIOS helps. Sometimes an exclamation mark is lit on the I2C HID Device Driver and disabling-enabling also solves the problem, but for a short period of time. The screen responds to the touch of a hand in any position of the laptop.