Hi! all. i just installed a animated wallpaper for my ipod touch 1st gen. 2.2.1. it works fine but when i press music, video or photo icon to view or listen to music & after that return to home screen, the animated wallpaper is no longer there & is replaced with a black background. I also noticed that my ipod touch seems to lag when navigating thru music menus & video menus seem to take a while to load. Is this normal?