Well Nikkijo, you (and the person who recommended this shop to you) are 2 very lucky people!!! To update my saga, after Halit (Gold PC Shop technician)had checked this 'brand new computer' 7 TIMES and found nothing wrong I was fortunate enough to have a neighbour who is a computer technician and viewed the whole episode as a challenge. In his own time, he totally dismantled the computer and checked every component. He came up with the suggestion that I return, once again, for the 8th time, and intimate to Halit that perhaps the mother board needed replacing. This done, imagine my surprise when 24 hours later Halit telephoned to say that the mother board was faulty!!!!!!!!!!!!!!!! This has now been replaced and to date my pc is working perfectly. So I reiterate, if anyone is thinking of purchasing a pc from this shop ..... AVOID!!!! but I am more than willing to recommend my neighbour Murat!!!!