keyboard stopped working for no reason?

my tranformer pad was working just fine 2 days ago . and yesterday i was ready to use it when i started putting in my password like normal but it kept saying it was wrong , i pressed each button individully but i couldn'd press the 0 i didnt think much of it then another key this time the p then i checked the rest and " ; " didnt work. my first reaction was restart the computer but i soon realized my keyboard stopped working for no reason at all. the rest of the dock works fine, maybe something came loose? i would really apreciate any and every kind of help that you could offer me. thank you so much.