I have been following this thread closely unfortunately I have no internet until tomorrow other than my phone but that's life. In researching your problem you really have no choice but to do a total restore back to factory state using iTunes. If you have music you wish to keep and or photos I can recommend a couple of solutions using third party apps for windows or macs that will copy those items. Same with address book. Then you can restore these items later. I have had to do this with 2 clients whom had no back up at all and were in trouble big time. I don't understand and also cannot find out why your iPad ended up with a password not initiated by you. If you have older backups in iTunes you can revert to an older one but frankly starting fresh seems only way out