I haven't used a wireless keyboard or mouse.
![Confused](images/smilies/confused.gif)
but, maybe...
reboot again?
check batteries?
try a restore?
could there be any dirt,dust,crumbs in the keyboard?
turn it upside down and spank it to see if anything fallls out?
Or if you have a disk or the drivers for it reistall those...probably the cleaner removed something needed for kb.