Hey I have the HTC TOUCH XV6900 and it has never had water damage or anything..and for some reason the touch screen works perfect at times but every now in then recently it has been acting up and when I press buttons it dont do anything..then I press harder and it will sometimes work..Could this possibly be something ive installed? does it need an update? what could be wrong? I know it has no water damage so dont know why all of a sudden it could be doing this?? any help? suggesstions?