I have a persistent problem that I can’t determine its cause. I have noticed that certain of my folders (deleted items, spam) revert to the original system profile settings even though I have changed them repeated to my preference. Some folders are unaffected (inbox). This usually happens once to twice a week. I haven’t discerned any pattern. Let say I change fonts or other visual effect. It might stays for a week or so then it come back to default. really odd. I use a workstation linked to an Exchange server. Any clue some one?