what have I done?
desktop keyboard is doing something strange. most is normal but letters a, d, s, w have somehow relocated to the arrow keys! if I hit the actual letter keys, they perform odd functions. the "a" backskips a space. the "w" jumps back a whole line of text. "d" and "s" don't seem to do anything. shift key makes arrow keys caps - WADS.
have tried restarting, what next?
= new reply since forum marked as read
Keyboard might be buggered - it happens. Is it a gaming keyboard? They are usually programmable and you may just have lucked out with the key combination.
Could also be junk, dust, cannabis seeds (joke) or other detritus down between the keys. Upend and tap gently until stuff falls out or use a can of air duster to clean.
I go through keyboards like chocolates and always keep a couple of spares. If none of the above works best to try a new one.
Edit: Forgot to say: did you happen to get any liquid on it? Only a drop will do in the right place. That can cause freaky behaviour as you described. Solution - turn upside down and let it dry out for a day or two. 
with a bunch of junk on my desk in front of the keyboard (between me and it) something must have pushed some combo of commands. AAAARRRGGGG!!! I'm too far away from town tonight. there must be a way to undo this 
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