Welcome to the forums trebor! Try putting pressure on the back of the phone where the speaker is. See if that makes it work. There are some Razr's that have experienced this problem where the components by the speaker become loose (or something like that) and that pressure fixes it. Now, of course, you don't want to have to apply pressure there everytime you want to use the speaker! But if it your speaker miracuously works that way, you know for certain that is the problem. If so, your phone is still covered under warranty and you can get a replacement.