I wanted to give you all some hope. I bought my 65gb model 3 months ago. I had all the pen issues that have been described, started after two months I've tried all the remedies that have been tried. My pen has died twice. The last remedy was simply to reinstall Windows .. twice. I am using a standard 8.1 enterprise install, not the factory for this tablet. I haven't had any pen problems for at least 3 weeks. I'm not sure why. But it seems solid. I've stayed away from the Wacom driver. I am just using the standard driver and any any updates that windows throws my way and, God willing, I've been good for a while. My message to everyone is.....YOU DON'T HAVE TO GIVE UP YOUR DEVICE!.... try the windows install...a couple times if necessary. Yeah, the drivers need to be installed in some random order while you stand on your left foot and wave a dead chicken over your head. yes.... but, I believe it will eventually come back...and you don't have to wait 2 months for Asus to (probably) do the same thing.