It did to me that a long time ago, so it didn't alow me to play games when I wanted, holly cr@p. Do a virus\malware scan or sth. I don't think that anything harm has occured. It also might be keyboard incompartibillity if it is wireless (probably desktop button is executed or sth), try downloading the latest drivers for that. I can't imagine what else could it be. Maybe you should ask someone more expierienced with windows than me, but i would be happy if I helped.
