Has anyone else had a problem with Thunderbird portable where the app wants to download the entire mailbox every time the program is opened?
I recently moved to the portable app instead of trying to find different ways to sync mailboxes on multiple computers. However, every time I open Thunderbird for the first time that day it tries to download the entire mailbox (usually some 600 messages). It is almost like the program doesn't remember what it has already downloaded.
Has anyone had this problem?
Does anyone know how to solve this problem?