Frequently, when I am trying to answer or make a call, I get a pop-up message "Contacts have stopped" and I have to press OK in the message box before I can answer the call. If I'm trying to use Contacts to make a call, I have to keep pressing the Contacts button until the error message goes away and then Contacts will open. Is this just a glitch in my Motorola Droid Razr M or is this a system problem?