Lost virtual desktops on panel

[geezer]

New computer. Installed 14.04.2.

Clicked "System Settings", and set the virtual desktops to 4, 2 rows.

Clicked apply. No desktops in the panel. Logged out and back in. No desktops in the panel.

How do I get them back? I'm using Ctl-F(1/2/3/4) for the time, but find clicking on the desktop in the panel much easier.

[Snowhog]

Make sure Widgets are unlocked. Right-click on the panel and check for/add Pager.

[otisklt]

If the pager is already there, remove it then add it back from the widgets.
Seen that once before.