just installed Thunderbird Portable Version: 55.0b2 (32-bit) onto a 32GB memory stick. Set it up fine on my desktop pc, all working. Put stick in another pc, run thunderbird.exe from stick and up comes a new installation, not my emails and email accounts. How do I make it truly portable and pick up my emails from any pc using my stick. Help would be appreciated, thanks. Mike. ps. running Windows 10 on both computers.