crazy computer

Have you managed to check inside and out for any alien communication devices? There is a good chance that while you were sleeping the other night they swooped down and rigged your computer. Now that everything is complete they have begun operations. If I were you I would take my computer down to the nearest BestBuy, and tell GeekSquad exactly what happened. Make sure you let them know that you think the aliens have gotten to it. They'll know what to do.