I have had my droid since the end of November and since I can remember I have had this annoyance. When I read emails on my yahoo account and then delete them they don't always go away. Next email comes in and below it are the ones I had presumably deleted 5 mins earlier. So basically I just end up getting on desktop computer and deleting them that way. I have checked the settings through my yahoo and can not see anything to change there.
Any one else ever run into this and have a fix? It is definitely just a minor annoyance to put up with for such a sweet phone.