Do you mean something else than the Properties dialog you get for example by right clicking a track and selecting Properties? The instructions Terence gave affect both the Properties dialog and the Default UI's Selection Properties element. No additional steps should be required, but restarting the player never hurts.
Well wouldn't you know, Case was right. Restarting the player was the missing thing! Thanks Case! Just like rebooting my computer, it's never the first thing I try. LOL