I am using macmini 1.5GHz Intel core solo and using Leopard. Initially it works fine for 15-30 min and then doesn't work for whole day. what is the cause?
Do not post the exact, same question again -- use the existing thread for discussion on this topic. If you feel the answers you got were not helpful or did not work, simply use the existing thread to state that and continue troubleshooting in that same thread -- there is no need (and no benefit) to starting a new thread asking the exact, same thing. If someone does not know the answer from your previous thread, starting a new thread is not going to somehow, magically, make someone know the answer.