I dont know whats happened but the f key on my keyboard doesnt work any more, i had to paste it in to here .
Does anyone know why this would happen on my computer?.
Evcerything else works ok.
Same thing once happened to my J key.
I spent long hours wondering why , 
then I remembered spilling coffee over the keyboard. 
Apparently this damages electrical equipment. Perhaps you’ve done the same with a bit of homebrewed red wine, which is equally as damaging
