my computer is infected by a virus

Someone had used my own property whatever they want. For that reason, my mac computer is infected by a virus. One of virus symptoms is that the computer speed is decreasing. I have to repair it. Before I go to bed, I want to talk about a movie, Cloverfield. I watched it last night and was dizzy while I was watching. This movie is shot by a camcorder so that it looks unprofessional, unfortunate. I expected watching it, but it gave me a little bit disappointment. Eleven days from now, the Lost season four is going to play on TV. I look forward to watch this one. People who have watched Lost already know Kate and Jack are rescued somehow, and Jack wishes he wants to be crashed on an airplane so that he goes back to the island. Why does he want to go back to the island? According to Jack, he, Kate and maybe other people were not supposed to leave the island. Non-sense. I have to read several short stories and write about it. My eyes are tired.