You got to read THIS topic. Probally one of the strangest thing(s) I'v readed before. Scroll down in topic and read about the others problems too, a lot of strangeness.
Wierd, i think that its just about frequency. Theyr both running on same frequency and stuff. Just like over 3.0ghz processors are dangerous and 900Mhz mouses (wireless) are breaking up the phone signal.