Deleting from a Playlist

The Andriod Manual says that to delete a song from a Playlist, you Longpress the song title, then select "Remove" from the choices.

But when I try to Longpress a song title from my newly created Playlist, I don't get the usual display -- just a faint copy of the song title and an 'underlined' that allows me to move the song title up or down the list.

What am I doing wrong?

Thanks.

Ps -- I love the device. It was worth buying a Nexus 7 for.

R

Swipe it's title from right to left, sorry about the manual