Unlock iPad with default password
I have recently (3 days back) bought iPad2 ( iOS5.0 ) with smart cover. I have used it for 2 days and it's asking me to enter passcode to start the iPad. I have not even set the password to the iPad and not sure why it's asking the password to enter. Is there any default password to iPad? How can I unlock it now ?
Thanks
Sanjay
iPad 2, iOS 5