restore your ipod. same thing happened to me. if the restore doesnt work. try again. its annoying but it might work. if those 2 times dont work. take all of the apps off the ipod sync it without apps, then resync them back on. another problem you might be having is you might have too many? i mean that would mean A LOT but you might of gone crazy. i have about 4 or 5 pages. if you have more than that, then that might be your problem. if all of ^this fails, go to www.apple.com
and look around the forums there for an answer, theres usually a thread with someone in the same boat and tons of legit answers to the problem.