Has anyone else have this problem? I left my htc usb cord at home when I went out of town and only brought the plug portion with me. I went to the Sprint store and bought a Sprint usb cord and charged up my phone. After that, my phone started doing weird things like automatically switching to speaker phone when answering or making phone calls, and opening random apps. also, sometimes my touch screen wouldn't read my swipes. At first I had no idea why my phone was doing this, but after my wife used it to charge her phone, she experienced the same thing. I stopped using the Sprint cord and only used the htc cord and eventually the problems every away.