Hi! I received a new laptop just yesterday. It a Sony Vaio FS515E and seems to be really good. Im not sure if I have a problem though. After using the laptop for about 4 hours when I switch it only it makes a lot of noise, like a purring of a cat but also some clicking. I wouldnt expect that from a new laptop and it wasnt doing it at first. When I request the laptop to do anything it makes this noise but not as much as when it switches on. Please can you help me - should I contact the supplier and ask for a replacement or do you think this is normal??? TYIA!