It is a frustrating one. I still feel there must be a programme asking for an update, I have had this problem a few times and that has always been the answer. Another thing to look at is Textbridge or similar that comes with Win 98. However I do recall an earlier occasion when I was NEVER able to find what it was; after a week or so it simply stopped doing it! There might be some aspect of Windows like Update that needs to check in (under its own steam so to speak) once after installing. . .I'd love a definitive answer to this one; someone on this board knows what it is, Im sure.