Please help me. I upgraded to 2.2 last night and used QuickPwn to jailbreak my 3G. Now my phone won't ring. It will only vibrate. Also, if my screen is unlocked and a phone call comes in, I can't accept/decline the call using the soft buttons.

Yes, I have already checked the volume level and the hardware ringer toggle button. All other sounds on my phone work fine.

Please help me.

My phone is 3G, factory unlocked.
Firmware 2.2.
Jailbroken with Quickpwn.