Problems w/ wireless connection after installing updates

[George Sgouros]

My daughter has a Dell laptop running Ubuntu.  She was having problems viewing youtube videos and I thought that an Ubuntu update might help.  I went ahead and selected update (about 300 some updates were pending - I bought the laptop last Christmas!).  After the updates, the wireless network stopped working.  I connected by wire and that work, the dialogue for network.manager is different from the one her twin sister has (which I did not update).  Am I dealing w/ a bug?  The menu I get when I try and bring up network.manager does not look like the one on the other laptop.  The sequnce to get to network manager also seems different: System, adminitsration, network manager (rather than just network). 
 
Any support to get this to work would be much appreciated.  I've gone through all the Ubuntu sites and they seem to be geared for a higher level of expertise than what I have (It's been a long time since I used UNIX... and even then, I was just a user).
 
Thanks.
 
-GS
Ellicott City