i have a hp compaq laptop. the keys poiulkjm dont work. but when i turn on the num lock key, it works and enters the corresponding numbers. its just the letters that dont work. example, even when the number lock is off, when i press the letter p, an asterisk comes out instead. on the other hand, when i press on the letter L, it scrolls down. what can i do? When i use the letter u, it scrolls to the left
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