Currently Being ModeratedApr 28, 2013 5:44 PM (in response to boat2556)
Follow the steps in http://support.apple.com/kb/HT1212 and you may need to do so more than once.
Currently Being ModeratedApr 29, 2013 6:38 AM (in response to boat2556)
If you forgot (or don't know) your passcode, restore the device from backup on the last computer it was synced with when the passcode was turned on... this will remove the passcode. If you do not have access to the last computer it was synced with, you will have to force it into recovery mode & restore as a new device.