There are several ways, but I prefer one of these two: the geek way

1. close thunderbird
2. open profiles.ini in the C profile under appdata\roaming\thunderbird in notepad
3. change all occurrences of the profile as it was on C to the expliclt location of the one on N

example: Path=N:\xxx\Thunderbird\profiles\profilename

1. change IsRelative=1 to Isrelative=0
2. restart thunderbird

the safe way

1. click help>troubleshootinginformation
2. scroll to 'profiles' and click 'about:profiles'
3. click the 'create profile' button in upper left
4. click next
5. enter short name for new profile, such as DRIVEN
6. now, click the browse button below and select the explicit profile to be used
7. click finish and then launch

Comment: prior to doing either option above, you can change the name of the profile itself, if desired. The name has no significance.

Thank you, David, but... When I moved the data to the N: drive, I only moved the eMail folder. I didn't move the profile folder. The profiles contain (I assume) the email subfolders and rules. I don't want to lose those. Editing the .ini file only tells where to find the profiles, but the profiles need to tell where to find my eMail folder.

well,that isn't what you wrote. I infer you meant the account folder, as 'email folder' is too vague. doing is easier when you have the steps first. If you have already MOVED the account folder to the N drive, I suggest COPYING it back. Then, do this.

1. click account settings
2. click the server settings pane for the account
3. click the browse button at lower right, to the right of local directory,
4. browse to the N drive where the account is stored and click ok
5. thunderbird will close and restart
6. you can now delete the account folder from within the profile.

In reviewing, I suggest you explain exactly what you want to achieve, as email folders and rules are part of an email account. Just what exactly did you move to the N drive?

Ok, I'm taking a different approach. I want to restore everything to how it was on my C: drive. I thought I restored properly, but my rules for moving email to subfolders are lost. Those were set up a while back using FiltaQuilla.

So, could you tell me which folders that I need to restore?

I got things messed up, and I need help cleaning up my mess.

     Thank you,    Art

Ok, it will help to know where stuff is. is the original profile still in the default location? what folders were moved to the N drive? That is, tell me where you move stuff n we can work from there. My inference is that you would like the entire profile on N. Fill in the details and I'll assist. This will not be finished today, as I'm starting to fix dinner now. :)

I do appreciate your patience with this and with me. My email had been in this folder: C:\LCGI_EVERYTHING\Thunderbird\eMail\DivorcewareNJ and I moved it to N:\LCGI_EVERYTHING\Thunderbird\eMail\DivorcewareNJ

When I moved it back to C:, the email is there, but it's not moved into subfolders by rules that I created. I also set it up such the each email would be in a separate .eml file. (I doubt if I can remember how I did all of that a couple of years ago.) (I have a program that reads through the emails and performs processing based on their contents.)