I purchased an Inspiron 15 7000 2-in-1 laptop in 2017 and it came with a PN338M Active Pen. I didn't start using the pen until this year. Last week it quit working. I swapped out the battery (twice), and it still didn't work. I thought it might be the pen, I purchased a new PN338M Active Pen. It arrived today, and it doesn't work either. What am I doing wrong?