i had software issue with my ipod nano. after i played with speed normal/fast when an audiobook was playing (press middle button several times to get there), i got stuck with “speed normal” on menu all the times. when i pressed the middle button, it switched between “speed normal” (a few times per cycle) and audiobook/song picture. i tried a menu reset,connected it to itunes, but it did’t worked. doing a hard reset solved this problem.

to do a hard reset on ipod nano:
1. Toggle hold on.
2. Toggle hold off.
3. Hold down the menu and middle button for a few seconds.
4. The iPod nano should then “reboot” and voila!