my wifes droid charge does some weird thing when shes talking on it; makes a sound that is similar to a walkie talkie. anyone ever experienced that sound on their phone before? also, her gps continues to give her problems. going to call verizon again and see if they will send a replacement for her phone. are there any problems with the gps with the htc rezound? she travels alot so I want to make sure that she can trust her phone when traveling.