some issues with samsung ativ smart...

Hi I got an Ativ smart pc and loving the Onenote and inking function. However there are 2 huge problems with it that frustrates me sometimes... hope anyone here help. 1) I have a cover that puts the tablet to sleep when closed, but sometimes the tablet wouldn't wake up after that, the only solution is to long press the power button to shut it down. Is there any solution to this other than removing the magnet from the cover? 2) I felt that the touch screen is very much less sensitive than other touch screen devices. I have ipad, window phones, android tablets... but only on the Ativ smart I have to press harder for it to sense the touch. If I lightly touch my fingertip on the screen, it doesn't register the touch. Anyone with any idea to increase the touch screen sensitivity of a win8 device?