I have 4 email accounts on Thunderbird. I got the insufficient disk space message, and compacted all 4 email accounts. I also used "Repair Folder" on the inbox of the largest (Ranch4) of the 4 email accounts. I then noticed that 4 folders under the Ranch4 email account no longer display their sub-folders. These happen to be the largest folders, which contain several years of email. I backed up my complete Thunderbird profile (from app data folder) 2 months ago. This includes data from 3 of my 4 accounts (I added 1 account since my last back up 2 months ago). If I simply copy the last profile copy back to my computer, I will lose all the data from my new account and the recent data from the 2 unaffected accounts. I would prefer to just bring back the data from Ranch 4 (I am okay with losing the data in that account from the last 2 months). I would be grateful for any assistance on this.