it's possible that the data wire to the cd-rom has came loose. All certain spywear programs and v/b scripts will try to access your cd-rom. (i.e. have you ran adawear latley?). Let me know what happens after you restart.
(gem) Hvis du vil vide mere om nogle spil, kan du tjekke under link sektionen og se om du finder nogle interessante links der. (pauloaguia) (vis alle tips)