Hey guys; So, last night I decided to do redsn0w's tethered jailbreaking for my iPad, 4.2.1. I did it just fine, and I was even able to install appsync and sync the apps I wanted with no issues as well. I practiced rebooting the iPad tethered and untethered, and it worked just as expected, with no issues. I ran into a problem, however, when I attempted to install Winterboard from the Cydia 'store'. After installing, it prompted for a reboot. The iPad was tethered at the time, and so I hit the reboot button, expecting it to reboot into it's "non-jailbroken" state, and then I would just reboot it again using redsn0w. Instead, it would not boot up past the Apple logo. It stayed there for 10-15 minutes, not booting up past that. I tried restarting it (using Power + Home) and it restarts, then goes back to the Apple logo. I tried unplugging it, same problem. I figured it was a fluke, so I restored it back to factory settings, put my latest back up back on it, and ran the jailbreak again. Again, no problems, but I decided to stay away from Winterboard. I attempted to install another Cydia store app, SBSettings, and...the same thing happened! My iPad is now stuck again on the Apple logo. So, what am I doing wrong? Why is this happening? I really would like to have my iPad jailbroken, if it's at all possible. Thanks for any/all input.