Keyboard problem

I just bought a new computer and I must have hit something but now I cannot use the question mark as all I get is the EéééÉÉÉ and the one above is the sameèèè. so anoying how do I undo this please
 
I just bought a new computer and I must have hit something but now I cannot use the question mark as all I get is the EéééÉÉÉ and the one above is the sameèèè. so anoying how do I undo this please
No guarantee, but if wireless, remove the batteries for a bit, it might help. Any lights lit up on the keyboard? If so, which?
 
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