How do i reset my tablet? i haven't used it in a while and now it won't let me use the old lock i had placed on it, nor will it allow me to log into my gmail account. so, i was trying to reset the tablet--erase all the downloads and revert to factory settings--but that's not working either.

Audio Players & Recorders - Tursion - 10.2 Google Android 2.3 Tablet PC 4GB 512 MB RAM