In the past I have been able to use the phone as a mounted drive, but for the past couple of months my EPIC wont mount on my laptops which run Windows 7. I plug the USB in the computer and nothing happens on the computer side. The phone will charge and it recognizes that it is connected to a computer (gives me the options to mount, tether or charge) but absolutely nothing happens on the computer. No sound of a USB device being connected/disconnected, no error messages, nothing. I used to be able to transfer media and tether my phone with PDAnet, but not anymore. I've tried everything suggested on other threads (different ports, different cables, debugging, disabling wifi and 3g, etc) but nothing has worked. Am I now at the point to get a replacement? What would you do in this situation?