I have my iNotes mail DB running on V6.03 and it replicated to V6.5. If I use V6.5 to mark follow up and read /unread mark, strange thing start to happen, all the V6.5 views can not display any email. But if you use Notes client, you can see each view has all the emails. Only iNotes view is bad, if I use the V6.5 mail Db to create a new replica, it will fix the problem. so far. V 6.03 owrks fine, but V6.5 are features rich.