Unable to get update for Comodo Internet security.

Hi, I am first time using Comodo Internet security tool. I have just download it from internet, but when i am trying to update it for the first time, after getting updated 30%, it is not moving at all and message coming updation failed. What is quarantine console in Comodo, it is asking for CD for installation, how to get it or solve it. Is anyone there who can help me out. Please!