[dba-Tech] Keyboard problem

Dear List:
 
I have a Microsoft wireless keyboard which has been working fine.  But
recently something changed with the function keys. Like F2 used to be
Rename, now suddenly it's changed to Undo.  F3 used to be Find Again.  No
more.
 
Does anyone have any idea why this happened or how to get back to my old
settings.  In the device configuration I don't even see a way to set F2 to
Rename.
 
MTIA
 
Rocky