Resetting F Keys?

Does anyone know how to "reset" the Keyboard F-Keys? I must have  keyed something on accident because now all of a sudden when hit the F8 key for example, instead of the normal Ortho on/off, it is "cycling thru all the available autocad f-keys "Ortho on, ortho off, grid on, grid off, snap on, off, etc."...instead of having just the one assigned to it?

any ideas?

Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.