Aloha and thanks ( Mahalo ),
I did download Driver Cleaner. I tend to be a bit conservative with all this; the forums article on this web page follows that thought an seems to say that version 81.94 is about as high as I need to go for the GeForce4 440 Go. Anything over that has some issues with the card ( or maybe, vice versa ).
At least, I think I'll probably start there.