LG VX-8500 Chocolate

i've been having trouble with these buttons lately and i'm finally fed up. i've had this fone since october and had no trouble. lately, however, the touchcontrols have sucked. sometimes i slide my fone open and its like i'm touching the send button and it will start calling the last person i talked to without me actually touching the button other times the lights on the touchcontrols are on but they are unresponsive. does anybody have any suggestions?