Yes, I'm from London, U.K. When I click on 'Grab' in Utilities nothing happens so I'm not able to take a screen shot. I'll try to explain what I see when I click on Input and Output -hope you follow this!:
Input
Sound effects Output Input
Select a device for sound input
Name Type
Line In Audio line-in port
Unknown USB Device USB
Settings for the Selected Device
Input Volume: (Mic.) ____________________________ (Mic)
Input Level: (lots of mini cartouches)
Output Volume: (a Speaker)__________________________(speaker) (a small square) MUTE
(small square) Show volume in Menu Bar
............................................................................... ..........
Output
Select a device for sound output
Name Type
Headphones Headphone port
Settings for the Selected Device
Balance: ____________________________________
left right
Output Volume: (a Speaker)__________________________(speaker) (a small square) MUTE
(small square) Show volume in Menu Bar