dear list reading my earlier Post I forgot to mention I was not just using Skype to make the contact but the tandem feature of Jaws was being used and when the computer crashed it was not under my control, that is different to my old XP failing last October when downloading Jaws 11, the machine was under my control and it was a 5 year old desktop the engineer I called in last said to contact dell,he said something I did not understand, his English is not always clear. he said the CD-ROM is faulty and I questioned him, he said the C.D. ROM has a lens in it,I asked "what does it do is it like a camera? he said "lens has a crystal in it and the crystal is needed to run the operating system properly, I have not heard of crystals in CD roms I thought they just stored material hope it is a bit clearer Dorothy