I am using an iPad Wifi that was running on 4.2.1. I jailbroke it a few hours ago using the sn0w tool. Everything was working fine and I managed to install Cydia. I then downloaded nomute, which was when the problem started. After downloading nomute successfully, I was prompted to reset my iPad. After tapping yes, the iPad turned off. Since then, it's been stuck on the screen with the silver apple logo on it. I've tried holding the power and home screen button down for up to 10 seconds, and the screen goes black. Pressing the power button again though, causes it to go to the silver apple logo screen where it remains. I have no outstanding SDK Updates that need to be downloaded and I have restarted both iTunes and my Mac to no avail. My iPad is backed up, but my iTunes cannot recognize it so I cannot initiate it. Could someone please help? Thank you.