I was wondering if someone could help. I own an iPhone 3Gs and for some reason when in silent mode, the phone doesnt vibrate when i receive a new text message (sms). It vibrates when I receive a call in silent mode, and also when i receive a reminder from Intelliscreen alerting me of a missed call or new sms. Basically the vibration function works for everything except when i receive a new sms in silent mode and when i flip the swtich from silent to ring (and vice versa). Due to the above, i can only assume that its not a hardware issue since it does actually vibrate. this happened a few months after purchasing (and jailbreaking) the phone so i can only assume that this is being caused by an app that I have installed since it was fine for the first few months. I have checked the settings on the phone a million times (vibrate is on for silent and ring) and I cant work out why this is happening. I have statusnotifier, ireal sms (v2) and quicksms installed. i dont know if they're causing the issue but i have installed them and the prob still remains. Is anybody else having the same problem or can advise on how to solve the problem? ive searched long and hard on the net and connot find a solution. thanks in advance.