If your on a Mac, SSH into your iPod using the Terminal. It will look something like this "ssh root@[I]ip.address[/I]" But no quotes. The default password is alpine, but you might have changed it. Once you are in copy and paste this into the Terminal "defaults write com.apple.springboard SBShowRSSI -bool NO" No quotes. Then reboot the iPod. If you are on Windows you need to SSH into your iPod then copy the /private/var/mobile/Library/Preferences/com.apple.springboard to your desktop and change the SBShowRSSI value to NO.