Impossible to add an IP printer in Lion.

Hi,

I just started working for a company that allows me to bring my Mac to work.

Connecting to the network and sharing files was really simple to set up.

However, I am unable to add a printer because of what I think is a glitch in the OS.

What I am doing is opening System Preferences, then opening Printer and Scanners, and then clicking on the + sign (the printers do not show automatically).

The glitch is in that dialog box. All over the Internet, I find the dialog should appear like this:

However, on my MacBook Pro it appears like this:

As you may see, I am missing the toolbar with "Default, Fax, IP, Windows" buttons.

I need to add a printer over IP, but I cannot do it.

Does anyone know a solution for this? How can I get my toolbar back? Can I add a printer via Terminal?

Thank you in advance for your help.

Best,

Mike