I was downloading the new 3.0 software and the iPod just froze with the screen showing the Apple logo and a progress bar under it. The iPod will not shut off or do anything.
When you downgrade make sure you are restoring. Also when you downgrade to a software that require you have an earlier version it will malfunction. The program inside your iPod Touch has a version 3rd gen, and you downgrade/ restore to 3.0 a earlier version the program inside says, "Program unknown, and says needs 3.1.2 to activate ipod," What I mean is if you have a later version it meets all capabilities and requirements, but when you downgrade the iPod only has a few options and only can turn on with the correct version matched with the right unit.