[ubuntu-uk] Wifi not working for second user.

[Mac]

I've set up a second user account (for my wife) on my laptop.  The 
laptop uses WPA with a password protected by keyring.  So immediately 
after I log on, the system connects to the network and tries to log into 
it; and it then waits, asking me to type the keyring password to make 
the WPA key available.

But when my wife logs on with the new account, the system appears not to 
make any attempt to connect to the wireless network, and remains 
resolutely isolated from the LAN.

Clearly there's some setting up to do on the second user account (which 
does not have admin privileges) to make the connection to the wireless 
network;  but I don't know what.

You're advice would be most welcome!

Mac