I was just updating a favorite list with Sentinel. When I chose write to scanner, I got a message for each of my favorite lists that what was on Sentinel was different on each of my 4 scanners. I expected this for the one favorite list I changed, but why would I get a similar message for each favorite list, most of which I haven't changed in months? I chose copy and replace on scanner, and all seems OK. Just never had this happen before. Any ideas why?