> My son's computer gets a no keyboard found error at boot up.  We've
tried two different keyboards to no avail.  The amazing thing is, it
says no keyboard found, press F1 to continue.  How stupid is that?  If
there is no keyboard where the hell do I press F1?!
> Any ideas to try, or do we need to replace the MB?

If you were to plug in a keyboard, you could then press F1, and the system
would continue.

Assuming this is a standard XT or PS/2 keyboard connection, it's quite
possible that the keyboard jack on the motherboard is bad.  If the system
has USB ports, and the bios supports it (check for updates), you may be
able to use a USB version without resorting to resoldering the actual
keyboard port on the MB.