Anyone else having problems with weak signals in areas where the signal used to be great. I have been with Verizon since 1992, never have had a problem. The last three or four weeks, an entirely different story. Signals are so weak, can't even dial out, can't even call voice mail. I have to use my wifi to make calls. What good is a mobile phone if it's not mobile, heck, it's not just not mobile, it doesn't even work at home without WIFI.