Made the jump to 10 yesterday. My Pen, the top button only will bring up "Metro" OneNote, regardless of my specifying ON2013 being the default. If I double click, it will screen shot into Metro ON. Here's the kicker, erase button does not work in ON 2013, but it DOES work in ON Metro. I know, pains of breaking through the wall first. I use ON2013 all the time, and I use the eraser nearly as often as I use the backspace key when I'm in mad typing mode. Anyone else experience this?