Becuase my net speed is low. And I want to listen lecturers from the half time, means if light is gone and I have listned it till 35 mintutes, when light come then it means I will have to watch it from 35 minutes onwards, however, it does not start from 35 minutes and it becomes start from zero to onwards minutes. now tell me where should I got, I have losted my two dyas in downloading different explorer i.e. ipera, chrome and so on. But problem is still threating me and making my time garbage. I don't want to be fail in my test . Its really sad that so far my problem has not been solved despite of spending a lot of time. (