can someone please advise me i have just got this thing and i am having great difficulty with lack of sensitivity, there is no way you can go anywhere on it without having to litterally bang the screen, i managed to download ''angry birds'' to test it and there is NO way you can play any type of game like that, also when you are looking to scroll down a page there is NO way it is possible someone please help before i pull my freeking hair out, i have tried settings but there is nothing there about adjustment of sensitivity, HELP ? ? ?