Thanks for the advice. I went through and re-entered missing notes and resaved and they stayed there when I rechecked. The problem seems to have resolved itself. I'm wondering whether they were lost because I had to do something else and the Laptop went into sleep mode.
I do note however, that if you select type then write a note it stays, but if you do the note first and then mark it as business/personal after it wipes the note forcing re-entry, at least you are still in the item but it is a little irritating to re-write your note again.
