Thanx S2 however I eventually managed to track down the service department at MESH Computers (VERY poor at answering the phone for tech enquiry but very quick if selling you a new puter!!!) and after putting a flea in their ear managed to get some sense. Usual smart young techie chap left me standing as he stepped me through a fix which involved faffing around in the BIOS or something like that. All works fine now and I must admit I like the quick boot up time!
Appreciate the info anyway