No infections of any kind can be found on this PC, yet MSMail, MozillaFF and\nIE7 lock up constantly. How can this be fixed short of a reformat and\nreinstall of the OS? Vista has been as unstable as W98 for us. Is there any\nway to get it as stable as XP? Does anyone know what causes these constant\nW98 type freezes so many of us are enduring with Vista?