Why won't my iPod let my log into facebook?

[Emilyy]

In every single facebook app, including mobile web on safari, I enter my email and password but it keeps saying, "You must log in first." Every other social networking site/app is fine, but there seems to be a problem with facebook.

[Mr. Dent]

if you have never logged in with your ipod..check your security settings from your pc and see what you have regarding logging in from unknown devices..

[Prestige]

reinstall and install facebook apps again it will work perfectly .