Line through Mic in Voice Dialer problem

[DogPaw]

I have not been able to use my Voice Dialer for about a week. When I push the button a mic comes with a line through it like it has been muted. It very quickly displays "Please Try Again" and under that it states "You can also try restarting your phone". I am wondering if their is a mute for the mic but my Voice Search works fine. Could it be an application installed or being uninstalled has caused this problem?