On my second SP3 tablet, same things keep happening and I am not sure if the issues are Windows 8.1 or the hardware. I have spent at least eight hours with MS support, have had the tablet replaced and my docking station replaced. My Windows updates are current and after reboot I check again. Touch screen work 70% of the time using my fingers. I have calibrated. Pen just doesn't work as a stylus, is it supposed to? Keyboard touch pad pointer moves when you let go and hard to fine tune to an on screen selectable button. I have the proper setting enabled to snap to, enhance position and I have played with size and speed settings. Attach the keyboard and touch screen gets worse, works 60% of the time. Put the tablet in the docking station and touch screen works less than 20% of the time. I am on my second one. My question is: Is this normal or do I need to go for a third tablet?