my droid screen has been torchering me from the first week ive gotten it. the screen will not work, not let me touch home or back, select random things, tool bar jumps up and down, call people, hang up calls, twitches randomly, and i cant type anything cuz it either wont work or its highlighted and deleted. the list goe son and on. it even deletes people! this happens from time to time but its been 3 days now and im hardly able to use it. whenever i bring it to the stores it stops happening convieniently and they dont tell me anything. idk how to fix it or if i should just order a new one. help?