After upgrading to Gingerbread through kies, i made my phone on silent mode....now when i turn it into the normal mode the phone has stopped vibrating and ringing....is this a bug with Gingerbread coz no probs with the ringer or vibrator.....when an incoming call comes, the silent icon appears in the top bar and disappears, this i think is the reason for the phone not ringing or vibrating....how can this be fixed??? Plz reply.