I'm running a Iphone 3G Unlocked Jailbroken T-Mobile and for some crazy reason, my phone stopped vibrating today. It won't even vibrate when i enter the password wrong or for any other push I receive or text.

I eventually turned up the sound but now that doesn't even work after a while. Music and app sounds still work fine but when I get a phone call or push, the settings are turned on for all sounds but I don't receive a thing.

Any help would be greatly appreciated.
Thanks