loss of uk pound sign on logitec keyboard

[tiggysplace]

have lost the means of getting the uk pound sign- forum solutions do not work

 

[Saga Lout]

Can you type a number 3? If that fails to work properly it points to the key itself. Can you produce a £ sign from Windows onscreen keyboard? I appreciate it's not a fix but it might tell us something.

 

[Shoomer]

What do you get when you type [Shift+3]? Nothing or something else?