Due to my regular laptop being repaired I dragged out my old Dell laptop to use as a substitute. This has not been used for a considerable while so after a battery charge I was pleased it fired up ok. Alas all is not well as there is no response from the keyboard. I can scroll round and get to everything but not type. I checked in the device manager and it says the keyboard is working ok. Have I missed something simple or do you have any suggestions I could try. I thought more pressure on the keys might help, like with the aid of a four pound lump hammer but that will probably come later.